audio policy: protect capture from telephony RX path.

Add permission check if the capture device selected is telephony
RX path.

Bug: 23017158.
Change-Id: Iaa34d836e6cf46b7cbbf2483fcd4306dcd27ce90
diff --git a/services/audiopolicy/AudioPolicyInterface.h b/services/audiopolicy/AudioPolicyInterface.h
index 8523fc5..c1e7bc0 100644
--- a/services/audiopolicy/AudioPolicyInterface.h
+++ b/services/audiopolicy/AudioPolicyInterface.h
@@ -64,6 +64,7 @@
         API_INPUT_MIX_EXT_POLICY_REROUTE,// used for platform audio rerouting, where mixes are
                                          // handled by external and dynamically installed
                                          // policies which reroute audio mixes
+        API_INPUT_TELEPHONY_RX, // used for capture from telephony RX path
     } input_type_t;
 
 public: