Android Wear 9.0.0 Release 19 (PXDG.200512.006)
Update gdb prebuilt. am: 01e05a5d04 am: bc2150e0bf am: 8862ccbbd4
am: 172e21a7c8

Change-Id: I24506ea432c2538563c7fb297f1e7ee708313c1f