[automerger skipped] Make libbnnmlowpV8 buildable for native_bridge am: 8c5fba4013 am: de847ae085 -s ours am: adc5ed9541 -s ours am: 0d5b12f90e -s ours

am skip reason: Change-Id Ic4a9c4b926731af5992cfd27193ede53e0178c88 with SHA-1 8c5fba4013 is in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/gemmlowp/+/12128243

Change-Id: I7739d5871c65e9c485275d3755f821fd85001888