qcom-common: make selinux policy board/device-specific

Change-Id: I6e4dade5b886688a548863e3fe070d8cce9ddc13

Conflicts:
	BoardConfigCommon.mk
sony/qcom-common: Camerawrapper: Use hw_get_module_by_class

Change-Id: I796e9856b4a29770a8ed7ca02f8c3f2ae469830c