needs to be merged for ELFv2 support on big-endian.
- crypto/openssl/crypto/ppccap.c needs to be patched.
Same reason as in https://github.com/openssl/openssl/pull/17082.
After committing to main, please also MFC to stable/13. It should be possible to do it without any changes. MFC'ing to stable/12 won't be possible unless this patch is modified and may prove straight impossible, given that stable/12 uses GCC 4.2.