Rename exported3_radio_prop to radio_control_prop

The context name exported3_radio_prop is ambiguous and does not reflect
the usage and role of the properties. This changes its name to
radio_control_prop.

Some downstream branches are still using exported3_radio_prop, so
get_prop(domain, radio_control_prop) is added to avoid regression. It's
just a workaround and to be removed soon, after all exported3_radio_prop
are cleaned up.

Exempt-From-Owner-Approval: cherry pick

Bug: 162214733
Test: boot a device with a sim and see basic functions work
Change-Id: If5fe3be7c64b36435c4ad0dc9a8089077295d502
Merged-In: If5fe3be7c64b36435c4ad0dc9a8089077295d502
diff --git a/private/compat/27.0/27.0.ignore.cil b/private/compat/27.0/27.0.ignore.cil
index f4c2ae1..a566eaa 100644
--- a/private/compat/27.0/27.0.ignore.cil
+++ b/private/compat/27.0/27.0.ignore.cil
@@ -152,6 +152,7 @@
     property_info
     property_service_version_prop
     provisioned_prop
+    radio_control_prop
     recovery_config_prop
     recovery_socket
     retaildemo_prop