Move mediaswcodec.te from sepolicy/private to sepolicy/vendor

Bug: 148628896
Test: Local test the sepolicy rule, CTS-on-GSI.
Change-Id: I64620888c8eddc405cc8730537ef7e81594a0511
diff --git a/private/mediaswcodec.te b/vendor/google/mediaswcodec.te
similarity index 100%
rename from private/mediaswcodec.te
rename to vendor/google/mediaswcodec.te