RFR: 8320533: Adjust capstone integration for v6 changes [v2]

[Galder Zamarreño]

On Thu, 23 Nov 2023 09:19:11 GMT, Andrew Haley <aph at openjdk.org> wrote:

>> Galder Zamarreño has refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR. The pull request contains two new commits since the last revision:
>> 
>>  - 8320533: Use autoconf to select the right capstone arch name
>>  - 8320533: Update capstone aarch64 integration
>>    
>>    * `CAPSTONE_ARCH` for aarch64 is now `CS_ARCH_AARCH64` instead
>>    of `CS_ARCH_ARM64`.
>>    * The `-Daarch64` macro was getting in the way
>>    and was causing invalid C to be produced.
>>    Undefined it before including `capstone.h`.
>
> src/utils/hsdis/capstone/hsdis-capstone.c line 54:
> 
>> 52: #include <inttypes.h>
>> 53: #include <string.h>
>> 54: 
> 
> Need a comment about this `undef`

Added a comment.

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PR Review Comment: https://git.openjdk.org/jdk/pull/16788#discussion_r1403582788