Relax neverallow on telephony props conditionally

vendor_init is allowed to write any properties except for system
internal and system restricted props for old devices. Relaxing telephony
props to avoid build breakage.

Bug: N/A
Test: m selinux_policy with not_compatible_property
Change-Id: I1346a87b774099c837c329b977fbd993202af65b
diff --git a/private/property.te b/private/property.te
index 93545b5..64c8af1 100644
--- a/private/property.te
+++ b/private/property.te
@@ -397,4 +397,5 @@
   -radio
   -appdomain
   -hal_telephony_server
+  not_compatible_property(`-vendor_init')
 } telephony_status_prop:property_service set;