Merge "Suggest using add_soong_config_ macros instead of direct variable...

Merge "Suggest using add_soong_config_ macros instead of direct variable assignments" am: 0fea970b am: 8d3406df

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/1807738

Change-Id: Ib98392153f55637e3dbf9d904a894b12f89fcad1