add mediaswcodec service

Set up a new service for sw media codec services.

Bug: 111407413

Test: cts-tradefed run cts-dev --module CtsMediaTestCases --compatibility:module-arg CtsMediaTestCases:include-annotation:android.platform.test.annotations.RequiresDevice
Change-Id: Ia1c6a9ef3f0c1d84b2be8756eb1853ffa0597f8e
diff --git a/private/mediaswcodec.te b/private/mediaswcodec.te
new file mode 100644
index 0000000..50f5698
--- /dev/null
+++ b/private/mediaswcodec.te
@@ -0,0 +1,4 @@
+typeattribute mediaswcodec coredomain;
+
+init_daemon_domain(mediaswcodec)
+