camera_detect: Allow access to more specific sysfs_graphics

Related video4linux sysfs entries have a more specific label now, not
just sysfs. Misaligned sepolicy here and the label set by the device
sepolicy caused the Proximity sensor notification to pop up after all
upgrades, even if the cameras didn't change.

Issue: FP2P-538
Issue: FP2P-255
Change-Id: I4270ef1a42ed57b1fc5a0cdd88d882ba1b5bbd58
Depends-On: Id9080f58e9a38bb35ea00eb5edc67255d60cc090
diff --git a/camera_detect/sepolicy/camera_detect.te b/camera_detect/sepolicy/camera_detect.te
index 4b7e51f..f08f4fe 100644
--- a/camera_detect/sepolicy/camera_detect.te
+++ b/camera_detect/sepolicy/camera_detect.te
@@ -10,6 +10,7 @@
 
 # Allow reading name of camera driver from /sys/class/video4linux
 r_dir_file(camera_detect, sysfs)
+r_dir_file(camera_detect, sysfs_graphics)
 
 # Allow wiping of cached resolutions in shared_prefs of GoogleCamera
 allow camera_detect rootfs:dir { r_dir_perms };