Also generate hashes for files in gzimg directories.

At one point this should probably be unified at least a bit with the hash
generation of regular sets, so that there is a single place that defines
the types of hashes generated for sets and gzimg.

Inject TOOL_SED and TOOL_PWD_MKDB into mkimage

The configuration files used for mkimage might want to customize the passwd
database of the generated image (as is the case for an out-of-tree config
file I have) and passing in these tools helps to execute those modifications.

Recognize MKPOSTFIX=no in mkimage

etc.evbmips: Try to make `.if` labyrinth less confusing, NFCI

etc.evbmips: Build MIPSSIM for evbmips-eb

It builds, and runs on qemu-system-mips.

branches: 1.27.4;
Add MIPSSIM{,64} as appropriate

Handle mipsn64

Remove a misleading space in a ".elif".

Create an "octeon.img.gz" bootable image for evbmips64-eb release builds.

Rename the evbmips ERLITE kernel to OCTEON now that it supports more
than just the EdgeRouter Lite.

merge the rest of sbmips into evbmips. install the stand files in
/usr/mdec/sbmips/ and document them in installboot(8) even though
it isn't really ported yet. also build the SBMIPS kernels.

unfortunately, sbmips has been broken since mips64 merge, but the
fix can happen in the evbmips version, which we might merge into
the older trees anyway.

XXX: releng can turn off sbmips* builds now for -current.

branches: 1.21.6;
Add ub and elf32 to KERNEL_SUFFIXES

Build ERLITE and INSTALL_ERLITE if mips64eb

Add CI20 install kernel and build that and the normal image as kernel set.

Add a INSTALL_LOONGSON kernel with a ramdisk.
build LOONGSON and INSTALL_LOONGSON for evbmips-mip64el

Build the GDIUM64 kernel (since it tests 16KB pages).

Add CPMBR1400 and GDIUM as kernels to be built

Don't build 64bit kernel for evbmips-el

Add algor kernels

Build different kernel when mips64e[bl]

branches: 1.12.2;
Merge from matt-nb5-mips64

branches: 1.11.18; 1.11.26;
Add a comment reminding to update the release notes if the list of
kernels change.

OMSAL-400 and MTX-1 should only be built little endian.

Remove AR531X. Its too soon for this to be released, IMO. We may need
to change this kernel to AP30 and add other configs for AP43, AP51, etc.

If we're building for mipsel, we need to build the INSTALL_OMSAL400 kernel
so that the build of the install image works.

Added kernels for AR531X, DBAU1500, DBAU1550, and MTX-1.

Add OMSAL400.

Follow up the rename of the PB1000 kernel to ALCHEMY.

consistency tweaks

Build PB1000 kernels too.

Build the MALTA kernel.

branches: 1.1.2;
Add evbmips "etc" files.
Fixes PR port-evbmips/16230 from Ben Harris.