This is in preparation for adding ABI tests to them.

In doing so, update delocate.go so that OPENSSL_ia32cap_get is consistently
callable outside the module. Right now it's callable both inside and outside
normally, but not in FIPS mode because the function is generated. This is
needed for tests and the module to share headers that touch OPENSSL_ia32cap_P.

Change-Id: Idbc7d694acfb974e0b04adac907dab621e87de62
Reviewed-on: https://boringssl-review.googlesource.com/c/34188
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>