Merge "Export ril related flag to soong" into main am: e89581b775

Original change: https://android-review.googlesource.com/c/platform/build/+/3272222

Change-Id: I88c43f6bdbce262963379e24caed54a2401e0fcd
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>