DO NOT MERGE Fake 29.0 sepolicy prebuilts

I took current AOSP policy as base, then removed sepolicy so that the
set of type and attributes was a subset of types and attributes in Q
sepolicy, with exception of those that have not yet been cleand up in
current AOSP:

mediaswcodec_server
netd_socket
mediaextractor_update_service
thermalserviced
thermalserviced_exec

Bug: 133196056
Test: n/a
Change-Id: I2cbe749777684146114c89e1e6fc3f07400c0ae5
diff --git a/prebuilts/api/29.0/public/mtp.te b/prebuilts/api/29.0/public/mtp.te
new file mode 100644
index 0000000..add63c0
--- /dev/null
+++ b/prebuilts/api/29.0/public/mtp.te
@@ -0,0 +1,11 @@
+# vpn tunneling protocol manager
+type mtp, domain;
+type mtp_exec, system_file_type, exec_type, file_type;
+
+net_domain(mtp)
+
+# pptp policy
+allow mtp self:{ socket pppox_socket } create_socket_perms_no_ioctl;
+allow mtp self:global_capability_class_set net_raw;
+allow mtp ppp:process signal;
+allow mtp vpn_data_file:dir search;