msm8974-common: sepolicy: Label sysfs_leds, resolve denials

* avc: denied { search } for name="leds" dev="sysfs" ino=7437
  scontext=u:r:hal_sensors_default:s0
  tcontext=u:object_r:sysfs_leds:s0 tclass=dir permissive=1
* avc: denied { setattr } for name="led_r" dev="sysfs" ino=25718
  scontext=u:r:init:s0 tcontext=u:object_r:sysfs:s0 tclass=file
  permissive=1

Change-Id: I8840e28b3aa72e60d5c15cad66f043a36a15c771

sepolicy/common/file_contexts

@@ -53,5 +53,10 @@
 /sys/bus/iio/devices(/.*)?                                                          u:object_r:sysfs_iio:s0
 /sys/devices/[a-f0-9]+\.spi/spi_master/spi[0-9]+/spi[0-9]+\.0/iio:device[0-9](/.*)? u:object_r:sysfs_iio:s0
 
+# sysfs - leds
+/sys/devices/i2c\.[0-9]+/i2c-[0-9]+/[0-9]+-[a-z0-9]+/leds(/.*)?  u:object_r:sysfs_leds:s0
+/sys/devices/i2c\.[0-9]+/i2c-[0-9]+/[0-9]+-[a-z0-9]+/max[a-z0-9]+-led/leds(/.*)? u:object_r:sysfs_leds:s0
+/sys/devices/leds-qpnp-[0-9]+/leds(/.*)?                         u:object_r:sysfs_leds:s0
+
 # sysfs - mdnie
 /sys/devices/virtual/mdnie/mdnie(/.*)?                  u:object_r:sysfs_mdnie:s0

sepolicy/common/hal_sensors_default.te

@@ -1,6 +1,7 @@
 allow hal_sensors_default {
     sysfs_batteryinfo
     sysfs_graphics
+    sysfs_leds
 }:dir search;
 
 allow hal_sensors_default {

sepolicy/common/init.te

@@ -9,5 +9,6 @@ allow init {
     sysfs_graphics
     sysfs_iio
     sysfs_input
+    sysfs_leds
     sysfs_mdnie
 }:file setattr;