EARC: Add Policy for EArc Service

Test: atest vts_treble_vintf_framework_test
      atest vts_treble_vintf_vendor_test
Bug: 240388105
Change-Id: I561f647a68553fa0134f2e1bd65b0f18dd1785f1
diff --git a/private/system_server.te b/private/system_server.te
index 54ad242..83531ad 100644
--- a/private/system_server.te
+++ b/private/system_server.te
@@ -331,6 +331,7 @@
 hal_client_domain(system_server, hal_tetheroffload)
 hal_client_domain(system_server, hal_thermal)
 hal_client_domain(system_server, hal_tv_cec)
+hal_client_domain(system_server, hal_tv_earc)
 hal_client_domain(system_server, hal_tv_hdmi)
 hal_client_domain(system_server, hal_tv_hdmi_cec)
 hal_client_domain(system_server, hal_tv_input)