Define OPENSSL_64_BIT for PowerPC chips.

We had aarch64 handled twice, which was a mistake.

Change-Id: Id27fc86cb701a87c11c54b98534108f87e49262d
Reviewed-on: https://boringssl-review.googlesource.com/5131
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
1 file changed