smdk4x12-common: fix bt tether

Change-Id: Ib19439e39ba767e57826722279faaed02046df2e
Merge "smdk4x12-common: fix bt tether" into cm-10.2
smdk4412: add AdvancedDisplay

This partially reverts commit 006c95d4f0c75b9bdf3827856dc694d973464520,
we want to reuse some of it

Change-Id: I84dd929e4cd895d4c4d0d6a81d476eaa1bcc4a0b
Get rid of the gfx buffer workarounds

Concurrent buffers are now working, we don't need this crap anymore

Change-Id: I80c35bb67c41e9c61faeb6f3cd80d3e9033f9641
Treat all screenshots as going to a CPU consumer

Change-Id: Iee55fa03d9602f31a3b7f4f188778c58e8ca0131
Merge branch 'cm-10.2' of git://github.com/CyanogenMod/android_device_samsung_smdk4412-common into cm-10.2