Fixed issue where canvas transforms were applied multiple times

in overscroll scenarios on Android Go devices.

Added save/restore around TransformCanvas that is used to replay
filtered drawing instructions to ensure hole punches are carried
through even when a RenderNode is drawn into a layer.
Previously this would end up with transforms being applied twice
during overscroll stretch situations. This caused contents to be
shifted during an overscroll at the end of a HorizontalScrollView
or ScrollView where a SurfaceView was in the scene.

Fixes: 241582783
Test: Added CTS tests to Horizontal and ScrollView tests
Change-Id: Iac1717602fd5f251d3d6fa26109a4c532a9598b5