Add a SELinux domain for TurboAdapter

Define a SELinux domain so TurboAdapter can talk to PowerHAL.

Test: make, flash, use Turbo debug activity to call TurboAdapter
Bug: 151080800
Change-Id: Ib0f541a22b22b2602fbd900213ba5386455fdd9c
diff --git a/turbo_adapter/seapp_contexts b/turbo_adapter/seapp_contexts
new file mode 100644
index 0000000..4f983be
--- /dev/null
+++ b/turbo_adapter/seapp_contexts
@@ -0,0 +1 @@
+user=_app seinfo=platform name=com.google.android.turboadapter domain=turbo_adapter type=app_data_file levelFrom=all