Merge "Only write release config files if they've changed" into main am: 74674107

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/3132915



Change-Id: I31ac2ea835e3edc8ab0a7de578c95a4c8520ca2c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>