Rework the radio vs rild property split.

Only label properties with the ril. prefix with rild_prop.
Allow rild and system (and radio) to set radio_prop.
Only rild can set rild_prop presently.

property_contexts

@@ -7,17 +7,13 @@ net.gprs                u:object_r:radio_prop:s0
 net.ppp                 u:object_r:radio_prop:s0
 net.qmi                 u:object_r:radio_prop:s0
 net.lte                 u:object_r:radio_prop:s0
+net.cdma                u:object_r:radio_prop:s0
+gsm.                    u:object_r:radio_prop:s0
 persist.radio           u:object_r:radio_prop:s0
 net.dns                 u:object_r:radio_prop:s0
 sys.usb.config          u:object_r:radio_prop:s0
-gsm.current.phone-type  u:object_r:radio_prop:s0
-gsm.sim.                u:object_r:radio_prop:s0
-gsm.operator.           u:object_r:radio_prop:s0
-gsm.version.baseband    u:object_r:radio_prop:s0
 
 ril.                    u:object_r:rild_prop:s0
-gsm.                    u:object_r:rild_prop:s0
-net.cdma                u:object_r:rild_prop:s0
 
 net.                    u:object_r:system_prop:s0
 dev.                    u:object_r:system_prop:s0

rild.te

@@ -23,3 +23,4 @@ allow rild sysfs:file rw_file_perms;
 
 # property service
 allow rild rild_prop:property_service set;
+allow rild radio_prop:property_service set;

system.te

@@ -148,6 +148,7 @@ allow system wallpaper_file:file r_file_perms;
 
 # Property Service write
 allow system system_prop:property_service set;
+allow system radio_prop:property_service set;
 
 # ctl interface
 allow system ctl_default_prop:property_service set;