EC_GROUP_cmp in BoringSSL now matches OpenSSL.
EC_GROUP_cmp in BoringSSL now matches OpenSSL.

I had removed the final argument because it was superfluous, but that
was actually a mistake because EC_GROUP_cmp is used in more places than
I expected. https://android-review.googlesource.com/#/c/135661 puts the
argument back in BoringSSL and this change unforks the conscrypt code.

Change-Id: I6f4f57f59378d081a3f166291fcd280ab769f09e

google/conscrypt,google/conscrypt,google/conscrypt,google/conscrypt,google/conscrypt,google/conscrypt