[PATCH] [AArch64] Rename PAUTH_RA_STATE to RA_SIGN_STATE

[John Baldwin]

On 5/16/22 2:25 AM, Luis Machado via Gdb-patches wrote:
> The aadwarf64 [1] names this register RA_SIGN_STATE, so update the code to use
> the same name.
> 
> [1] https://github.com/ARM-software/abi-aa/blob/main/aadwarf64/aadwarf64.rst

LGTM

-- 
John Baldwin