[PATCH][AArch64]Fix the Cygwin build failure caused by questionable enum values in AArch64BaseInfo.h

[Tim Northover]

Hi Hao (& Bill),

> This simple patch renams such values and will solve the problem. As this
> patch only renames the values in enum, we don't need any additional test
> cases. As this is only a very simple patch, I don't know whether it needs
> code review.
>
> If it is OK, I'll commit it to the trunk.

This looks fine, and I'd have been completely happy for you to commit
and go for post-commit review on something like this. Fixing a build
is very important.

Bill: I'd like to put this onto the 3.4 branch please, would that be
OK with you? It should be extremely low risk.

Cheers.

Tim.