Merge "external/boringssl: Sync to 538b2a6cf0497cf8bb61ae726a484a3d7a34e54e." into main am: c8d4b107fd

Original change: https://android-review.googlesource.com/c/platform/external/boringssl/+/2879386

Change-Id: I2be3208bcdcc13cf4f63d35115185b08ecc38ae7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>