Support SELinux context label when mounting

If there is a SELinux context label in the recovery.fstab, we should
honor that when mounting the partition.

Bug: 19764039
Change-Id: Ic80a3377a5a94c9d10dd464eb1257b157a947510
(cherry picked from commit 548eb76c8f0e18d114ce4125905434c1c6920969)
2 files changed