Allow charger to read minui properties

Failing to read minui properties causes charger crash.

Bug: N/A
Test: enter charger mode with blueline
Change-Id: Ic174cd1116edd510499836ab42675d6fabc63324
diff --git a/private/charger.te b/private/charger.te
index 2b52aac..693fd3a 100644
--- a/private/charger.te
+++ b/private/charger.te
@@ -10,6 +10,9 @@
 get_prop(charger, charger_prop)
 get_prop(charger, charger_config_prop)
 
+# get minui properties
+get_prop(charger, recovery_config_prop)
+
 compatible_property_only(`
     neverallow {
         -init