Define power.battery_input.suspended property

Bug: 167636754

Test: on a device that has triggers configured for this property
Test: adb shell setprop power.battery_input.suspended true to disable charging
Test: adb shell setprop power.battery_input.suspended false to reenable charging

Merged-In: I79209530d5355a59a1cb7a61c629339cd62f8eb1
Merged-In: I4692d84d5c137d11c6f648d15083614e707fdd07
Change-Id: I4692d84d5c137d11c6f648d15083614e707fdd07
diff --git a/private/property_contexts b/private/property_contexts
index 34cc0f8..4785707 100644
--- a/private/property_contexts
+++ b/private/property_contexts
@@ -891,3 +891,5 @@
 # surfaceflinger-settable
 graphics.display.kernel_idle_timer.enabled u:object_r:surfaceflinger_display_prop:s0 exact bool
 
+# Disable/enable charger input
+power.battery_input.suspended u:object_r:power_debug_prop:s0 exact bool