evbarm/instkernel/sshramdisk: Get libssh out of objdir now.

Should fix problems like:

--- ramdiskbin.link ---
# link sshramdisk/ramdiskbin.link
/home/builds/ab/HEAD/evbarm-earmv6hfeb/20251217070550Z-tools/bin/armv6eb--netbsdelf-eabihf-gcc --sysroot=/home/builds/ab/HEAD/evbarm-earmv6hfeb/20251217070550Z-dest -static -o ramdiskbin.link ramdiskbin.o -Wl,-rpath-link,/home/builds/ab/HEAD/evbarm-earmv6hfeb/20251217070550Z-dest/lib -L=/lib -L/home/builds/ab/HEAD/evbarm-earmv6hfeb/20251217070550Z-dest/usr/lib cat.cro chmod.cro cp.cro dd.cro df.cro ed.cro ln.cro ls.cro mkdir.cro mv.cro pax.cro pwd.cro rm.cro rmdir.cro sh.cro stty.cro sync.cro sleep.cro chown.cro disklabel.cro fdisk.cro fsck.cro fsck_msdos.cro fsck_ffs.cro gpt.cro ifconfig.cro init.cro mknod.cro mount.cro mount_cd9660.cro mount_ext2fs.cro mount_ffs.cro mount_kernfs.cro mount_msdos.cro mount_nfs.cro mount_tmpfs.cro newfs.cro newfs_ext2fs.cro ping.cro reboot.cro restore.cro route.cro shutdown.cro slattach.cro swapctl.cro umount.cro ftp.cro tip.cro gzip.cro less.cro sed.cro tset.cro chroot.cro sshd.cro sysinst.cro progress.cro dhcpcd.cro libhack.o -ledit -lutil -lcurses -lterminfo -lrmt -lcrypt -ll -lm -lz -lprop -lssh -lcrypto -lpthread
/home/builds/ab/HEAD/evbarm-earmv6hfeb/20251217070550Z-tools/lib/gcc/armv6eb--netbsdelf-eabihf/14.3.0/../../../../armv6eb--netbsdelf-eabihf/bin/ld: cannot find -lssh: No such file or directory
/home/builds/ab/HEAD/evbarm-earmv6hfeb/20251217070550Z-tools/lib/gcc/armv6eb--netbsdelf-eabihf/14.3.0/../../../../armv6eb--netbsdelf-eabihf/bin/ld: have you installed the static version of the ssh library ?
collect2: error: ld returned 1 exit status

*** Failed target: ramdiskbin.link
*** In directory: /home/builds/ab/HEAD/evbarm-earmv6hfeb/20251217070550Z-obj/home/source/ab/HEAD/src/distrib/evbarm/instkernel/sshramdisk
*** Failed commands:
${_MKTARGET_LINK}
=> @echo '# ' " link " sshramdisk/ramdiskbin.link
${_CCLINK.${:Uramdiskbin}} ${_LDFLAGS.${:Uramdiskbin}} ${_LDSTATIC.${:Uramdiskbin}} -o ${.TARGET} ${OBJS.${:Uramdiskbin}} ${_PROGLDOPTS} ${_LDADD.${:Uramdiskbin}}
=> /home/builds/ab/HEAD/evbarm-earmv6hfeb/20251217070550Z-tools/bin/armv6eb--netbsdelf-eabihf-gcc --sysroot=/home/builds/ab/HEAD/evbarm-earmv6hfeb/20251217070550Z-dest -static -o ramdiskbin.link ramdiskbin.o -Wl,-rpath-link,/home/builds/ab/HEAD/evbarm-earmv6hfeb/20251217070550Z-dest/lib -L=/lib -L/home/builds/ab/HEAD/evbarm-earmv6hfeb/20251217070550Z-dest/usr/lib cat.cro chmod.cro cp.cro dd.cro df.cro ed.cro ln.cro ls.cro mkdir.cro mv.cro pax.cro pwd.cro rm.cro rmdir.cro sh.cro stty.cro sync.cro sleep.cro chown.cro disklabel.cro fdisk.cro fsck.cro fsck_msdos.cro fsck_ffs.cro gpt.cro ifconfig.cro init.cro mknod.cro mount.cro mount_cd9660.cro mount_ext2fs.cro mount_ffs.cro mount_kernfs.cro mount_msdos.cro mount_nfs.cro mount_tmpfs.cro newfs.cro newfs_ext2fs.cro ping.cro reboot.cro restore.cro route.cro shutdown.cro slattach.cro swapctl.cro umount.cro ftp.cro tip.cro gzip.cro less.cro sed.cro tset.cro chroot.cro sshd.cro sysinst.cro progress.cro dhcpcd.cro libhack.o -ledit -lutil -lcurses -lterminfo -lrmt -lcrypt -ll -lm -lz -lprop -lssh -lcrypto -lpthread
${CTFMERGE} ${CTFMFLAGS} -o ${.TARGET} ${OBJS.${:Uramdiskbin}}
=> /home/builds/ab/HEAD/evbarm-earmv6hfeb/20251217070550Z-tools/bin/nbctfmerge -t -g -L VERSION -g -o ramdiskbin.link ramdiskbin.o
*** [ramdiskbin.link] Error code 1

PR lib/58648: private shared libraries should go in
/usr/lib/private, not /usr/lib

crypto needs threads

branches: 1.5.8;
We don't need libwrap anymore; libhack replaces it.

Redo the sshsk_sign() stuff properly, but putting the helper in libssh.so

Deal with sshkey_sign. I am going to fix this properly at some point, but
it needs coordination from upstream (Patrick Welche)

Update to newer sshd (the host key is the same as before, it already
was a rsa key). From Harold Gutch.

branches: 1.1.6; 1.1.12; 1.1.36; 1.1.38;
Add a new installer image for Raspberry PI to evbarm

Includes the following major changes:

1) Add new configmenu item to sysinst to allow creation of users at
post-install time.
2) Add an sshramdisk type to evbarm, which is a ramdisk with sshd
enabled, allowing users to install on a headless PI by sshing to the
device with the account "sysinst" password "netbsd" to begin the
installation. (Note, neither the account, nor the ssh setup are copied to
the finalized installation image)
3) Change mkimage to build a boot-only image, without the root filesystems.

Much of the sshramdisk code could be reused on other ports easily.