kitakami-common: Add CAP_SYS_BOOT for charger

Add CAP_SYS_BOOT capability for charger service so that it can
shutdown/reboot the system.

Change-Id: I17ccba74d5a3c38bd751c55bcf42fb3689d730a7

rootdir/init.qcom.rc

@@ -639,6 +639,7 @@ service updatemiscta /system/bin/updatemiscta
 service charger /system/bin/charger
     class charger
     group log system graphics
+    capabilities SYS_BOOT
     seclabel u:r:charger:s0
 
 service per_mgr /system/bin/pm-service