Rename of_match_compat_data() to of_compatible_match(). Similarly,
rename of_search_compatible() to of_compatible_lookup().

Standardize on of_compatible_match() for driver matching, and adapt
all call sites.

Add 'const char *xname' arg to fdtbus_interrupt_controller_func .establish

branches: 1.6.12;
Define constants for representing the standard interrupt types
({pos,neg,double}-edge, {high,low}-level) from the FDT "interrupts"
bindings. Use these defined constants rather than magic numbers.

branches: 1.5.8; 1.5.10; 1.5.12;
Match nvidia,tegra210-ictlr compat string.

Explicitly initialize interrupt controllers and since we pass through to
GIC, don't include "LIC" in interrupt string.

branches: 1.3.2;
FDT: Interrupts -- add support for interrupt maps

The mct on exynos uses an interrupt map so we add support now. Devices
represent their interrupts either through a combination of interrupt-parent
and interrupts properties, where the 'interrupts' property is an array of
one or more interrupt specifiers; or through a combination of an
interrupt-parent that points to an interrupt-map, where the interrupt-map
contains 2 or more entries consisting of an index, a pointer to an
interrupt-controller, and a specifier for that controller.

This code adds the ability to walk the interrupt-map and return a specifier.
Unfortunately, the addition requires changing the interface to the
interrupt-controllers' _establish and _intstr functions, so this check in
contains a rototill of the three existing fdt interrupt controllers to use
the new interface.

branches: 1.2.2;
use of_getprop_uint32

Use fdt for device enumeration.