Merge "Support generating sdk snapshot for specific build release" am:...

Merge "Support generating sdk snapshot for specific build release" am: b9031281 am: 159d0725 am: 2270e68a am: ae12af04

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/1835221

Change-Id: Ifadfd30b183773febee866c6fc8325235114eeaa