Merge "Enable build flags in protobuf" into main am: dac6b97f

Original change: https://android-review.googlesource.com/c/platform/build/+/3069963



Change-Id: If7ec7e9d870f06f0e60ee4017d4312cce757327c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>