Merge "BOARD_SYSTEMSDK_VERSIONS should depend on BOARD_*_API_LEVEL if it exists" am: 9885f2f744 am: 72c7768320 am: 950fef5e34

Original change: https://android-review.googlesource.com/c/platform/build/+/1843156

Change-Id: I22bb4c7d7f37267725d7934386cff547f79387af