[Rpm-maint] [rpm-software-management/rpm] Add armv8* arch variants to rpmrc.in (#425)

[Jeff Johnson]

I should point out some deficiencies in using logic based on the {I,L,P,E} bits.

1) many operations to determine coloring of packages and transactions depend on the ability of simply or'ing together file color flags contained within.

2) it's not just the insanity of static archives (and Itanium) containing both elf32/elf64 a Objects that forced an arbitrary bit mask for file colors: e.g. on OS X there are/were universal binaries (aka "fat binaries") that are stitched/merged separate compilations intended for incompatible architectures.

3) while the ILP32 logic on arm is a reasonably sane designator that avoids confusing/obscure arch naming, arm apparently has also added options for floating point abi differences that may not fit into the scheme I outlined.

Meanwhile: if you are going to worry about arm arch names and compatibility related to ILP32, you should also reserve some additional file color bits

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