Force compile all targets as 64 bit. am: caa2a073 am: a5d0d605 am:...

Force compile all targets as 64 bit. am: caa2a073 am: a5d0d605 am: 2d7f7871 am: a3ab5d2b am: fbbbe17b

Original change: https://android-review.googlesource.com/c/device/google/redfin/+/2153433



Change-Id: I58e04451a717c5c497729131db0d4f226cf89c22
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>