[hack] nx: own brightness node

initfiles/init.nx.rc

@@ -36,6 +36,9 @@ on post-fs-data
     chmod 0666 /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
     chown system system /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
 
+	chmod 0666 /sys/class/backlight/backlight/brightness
+    chown system system /sys/class/backlight/backlight/brightness
+
     chmod 0664 /sys/kernel/tegra_cpufreq/overclock
     chown system system /sys/kernel/tegra_cpufreq/overclock