remove keyguard_security_height overlay

Using smaller than default value also squishes pattern/sim unlock screen.
Enabling navbar will now partially overlap lockscreen widgets.
You just can't have everything...

Change-Id: I35007fc61c3c530527cd1cdb174e296fe8240dea
fix wifi tethering

Change-Id: I49b1391fa0402712c378bac1eafbbe4187d3c2fa
don't disable vsync

We're faking vsync events

Change-Id: I2bbbaab1efc7f7bdd35e02a7c1c8899c0a2be881
build hwcomposer

Change-Id: I7f12079a59fb6a545e38fe6682ae26a8dcdc9d30
update patches