SELinux policy for netmgrd to set radio_prop.

Address the following denial.
  avc:  denied  { set } for property=net.rmnet_usb0.dns1 scontext=u:r:netmgrd:s0 tcontext=u:object_r:radio_prop:s0 tclass=property_service

Change-Id: I260af21e75fab405c2629530c92678c48d1e3e6f
Signed-off-by: rpcraig <rpcraig@tycho.ncsc.mil>
Merge "SELinux policy for netmgrd to set radio_prop."
Merge remote-tracking branch 'origin/master'