Merge "renderscript: mention deprecation in the docs "Overview"." am: 117daee126 am: 78697b3859 am: a4052cbbb0

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2425434

Change-Id: If62527f75dc090c30540df5ac7ba15672309e994
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>