SF: Avoid wormhole clear for BLIT calls

Do not call GPU clear from SF when composition
type is BLIT as it'll be taken care in HAL.

Change-Id: Ia613eb9b824c6484ecc8c8fa4ee883545d8541b8
Update HWUI config for xxhdpi/2GB devices

Change-Id: Ic9ba16b0360f2b755a1d23aa51eddc61beee2bac
Graphics:Add error check when create GraphicBuffer

Change-Id: Ib0ca59bf1dfe4ae0266c29c91c1dbe3d02c0904e
Author: Lingyun Zhu <lingyun.zhu@intel.com>
Signed-off-by: Lingyun Zhu <lingyun.zhu@intel.com>
Signed-off-by: Shuo Gao <shuo.gao@intel.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
Signed-off-by: Jack Ren <jack.ren@intel.com>
Author-tracking-BZ: 50141
sf: Fix detection of 0.3 hwcomposer

The format was different, so look at the header bits too...

Change-Id: Ibc3d4c9f6bca74d6951041f92e2ecc6189e58c41
sf: Don't do premultiplied alpha blending on the statusbar for hwc <= 0.3

Blending the translucent statusbar with the limited alpha implementation
of older HWC versions is glitch-prone, so don't do that with the compositor
at all

Change-Id: I96b49823b837a5063960d39c0937caea8bb3116a