angler: LCD: change dynamic_dsitiming permission

Bug: 23581456
Change-Id: I02d8c0b0055e9b2ee336d922726861e69ae9d45d
diff --git a/init.angler.rc b/init.angler.rc
index a827859..b099865 100755
--- a/init.angler.rc
+++ b/init.angler.rc
@@ -79,6 +79,9 @@
     write /dev/cpuset/foreground/boost/cpus 4-7
     write /dev/cpuset/background/cpus 0
 
+    # setup permissions for fb0 related nodes
+    chown system system /sys/class/graphics/fb0/dynamic_dsitiming
+
     # create symlink for fb1 as HDMI
     symlink /dev/graphics/fb1 /dev/graphics/hdmi