smdk4412: Notification LED controls

Change-Id: Ic20c4946d4ea2336e1fa844d6600469e3517752d
[1/2]smdk4412: exFAT Support

smdk4412-common: https://gerrit.omnirom.org/#/c/3132/

Change-Id: I211e0b47db8ce3b134fe1d6a0d9237a322fa6f9b
smdk4412: Boeffla Sound support

Change-Id: Ia58fd60641715d71128ac6a04ca832aaa1689fc3