init: set dimming_on node permission before start hwcompower

Give dimming_on node sutiable permission to allow
hwcomposer to set dimming_on to display driver.

Bug: 177141990
test: check file node permission
Change-Id: I1f78b77884d619f1e48a63ac11c4201089010a0d
diff --git a/conf/init.gs101.rc b/conf/init.gs101.rc
index 1725d60..27a3c7b 100644
--- a/conf/init.gs101.rc
+++ b/conf/init.gs101.rc
@@ -440,6 +440,7 @@
 # Permissions for hwcomposer
     chown system system /sys/class/backlight/panel0-backlight/als_table
     chown system system /sys/class/backlight/panel0-backlight/brightness
+    chown system system /sys/class/backlight/panel0-backlight/dimming_on
     chown system system /sys/class/backlight/panel0-backlight/hbm_mode
     chown system system /sys/devices/platform/exynos-drm/primary-panel/gamma
     chown system system /sys/module/drm/parameters/vblankoffdelay