Add support for MODULES_BUILD_FROM_SOURCE for consistency with am: 3011d98237 am: 8f7ce36e33 am: 314e88c5f6 am: 6552f6b3a7

Original change: https://android-review.googlesource.com/c/platform/prebuilts/module_sdk/SdkExtensions/+/1907887

Change-Id: Ie8a5bdf8953f571f9a5cf55be07bc5a2766c40b2
tree: 0c45b843996e1e2eab2434c6f584e69e186ddfbd
  1. .prebuilt_info/
  2. 1/
  3. current/
  4. OWNERS