Add sepolicy for logd and logcat services

The logd binder service is on logd side.
The logcat binder service is on system_server side.
These two binder services facilitate the binder RPC
between logd and system_server.

Bug: 197901557
Test: manual
Change-Id: I5f08bbb44a88dc72302331ab11c7d54f94db16ac
4 files changed