common: Change ro.telephony.* to telephony_config_prop

Change-Id: Ic5902d94ee7c4cfc73bf1432e654890f9c101d7a
diff --git a/common/private/property_contexts b/common/private/property_contexts
index 1fe6f2e..57cb76f 100644
--- a/common/private/property_contexts
+++ b/common/private/property_contexts
@@ -1,4 +1,4 @@
-ro.telephony.use_old_mnc_mcc_format    u:object_r:exported3_default_prop:s0
+ro.telephony.use_old_mnc_mcc_format    u:object_r:telephony_config_prop:s0
 
 # Recovery update
 persist.vendor.recovery_update         u:object_r:recovery_update_prop:s0