smdk4412-common: cleanup

Change-Id: If0e25e681485bbb21f7ea615093b90a5ea90f7e3
smdk4412-common: cleanup unused RIL boardflag

Change-Id: I4ee43cd12773e427432f77087b35c08389b163e2

Conflicts:
	BoardCommonConfig.mk
smdk4412-common: open source libUMP

Change-Id: I804424192c7f97523697a94cbc5dc939c27192e3

Conflicts:
	extract-files.sh
	proprietary-files.txt