Add hal_bootctl_default read permission to rootfs in Recovery mode

Fix the following avc denial:
avc:  denied  { read } for  pid=485 comm="android.hardwar" name="bin" dev="rootfs" ino=9529 scontext=u:r:hal_bootctl_default:s0 tcontext=u:object_r:rootfs:s0 tclass=dir permissive=0

Bug: 282670401
Change-Id: I23ab086ba21d6ffea8b48b4208933c031effc4d4
Signed-off-by: Jason Chiu <jasoncschiu@google.com>