[PATCH] Fix "psb CSYNC" and "bti C".

[Nick Clifton]

Hi Andrew,

>         * config/tc-aarch64.c (md_begin): Use correct
>         hash table for uppercase version of hint.
>         * testsuite/gas/aarch64/system-2.s: Extend psb case to uppercase.
>         * testsuite/gas/aarch64/system-2.d: Update.
 
Approved - please apply.

Cheers
  Nick