m7-common: Fix fstab formatting

Change-Id: Iacdabd0a1dc75f91ebc1b01d521f768db2ce91a9
m7-common: Label firmware partitions

Change-Id: Iac4ca72782b98d979c9ba64e73adbe2f6257b4af
m7-common: Inherit common QCOM SELinux policy

Change-Id: I2ed99ea18dcb4b60ea01ebb89f728048f07c8d7b