Update SDK tree after androidx.renderscript file name change.

  - androidx.renderscript prebuilt is named as androidx-rs.
  - android.support.v8.renderscript prebuilt is still renderscript-v8.
  - Note, this ONLY impact SDK and not device images.

Bug: 74398526
Test: mm
Change-Id: Ibdd547d4ce5ccb02394c2ce708561b1f13c8e16a
(cherry picked from commit ff268369)