[PATCH] arm: Add support for Armv8.7-A and Armv8.8-A

[Nick Clifton]

Hi Richard,

> This patch adds AArch32 support for -march=armv8.[78]-a.
> The behaviour of the new options can be expressed using a
> combination of existing feature flags and tables.
> 
> The cpu_arch_ver entries are technically redundant but
> it seemed less surprising to include them anyway.

Approved - please apply.

Cheers
   Nick