mach-msm: prepare samsung device folder

Change-Id: I8040b67de151a129542b6c28aa01be29fc10cda7
t989: add board files

Change-Id: I703d5567288d25f792811914239c83a0056ed58e
drivers: import from samsung msm8660-common kernel

Change-Id: If0458d2c15354e925fefa854e46a588c78c363fe