smdk4x12-common: fix bt tether

Change-Id: Ib19439e39ba767e57826722279faaed02046df2e
(cherry picked from commit 48a9228b1dbe3659c2aaac44fbe8e4b9476dad18)
smdk4412: add AdvancedDisplay

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

Change-Id: I84dd929e4cd895d4c4d0d6a81d476eaa1bcc4a0b
(cherry picked from commit de1305cf7aa11fda1f8cb395eeb11bdbefdbb5aa)