Update sapphire keylayout

Removed non-existent keys

Change-Id: I49b7cdc2c186cfffc40e76cda4f52f4c24562c25
Fix product identification

build.{device}.prop doesn't appear to work anymore, so set these product identifiers in init.{device}.rc

Change-Id: I1a27b42dcb6e308b0d9dd92db50b9c490e3c6410
Build with Minimal Fonts

Change-Id: I040c02273c3eae83dc399375ce55bdd416d53f0e
Prevent launcher redraw

Change-Id: Ia3ad4882662f0969a5dbc315d4826b7011303ada