Update build flags to new starlark api

Bug: 283477392
Test: Manual
Merged-In: I793aaec94c591a1143ed1d243896508f840a8912
Change-Id: I063e118c4cf459ba38757afdbbfc62431d577a45
2 files changed
tree: dc36b80c443946d29ad26d917298f49d47284035
  1. build_flags.bzl