Merge "Allow ppp to inherit/use mtp unix datagram socket."

ppp.te

@@ -8,6 +8,7 @@ domain_auto_trans(mtp, ppp_exec, ppp)
 net_domain(ppp)
 
 allow ppp mtp:socket rw_socket_perms;
+allow ppp mtp:unix_dgram_socket rw_socket_perms;
 allow ppp ppp_device:chr_file rw_file_perms;
 allow ppp self:capability net_admin;
 allow ppp system_file:file rx_file_perms;