Add API to filter out unnecessary PIDs from frontend output.

Bug: 213287138
Test: atest VtsHalTvTunerTargetTest
Change-Id: I075d68d722b2804f54d57a1ac9c350e2a9724ae3
diff --git a/tv/tuner/aidl/vts/functional/FrontendTests.h b/tv/tuner/aidl/vts/functional/FrontendTests.h
index 1745f76..537c419 100644
--- a/tv/tuner/aidl/vts/functional/FrontendTests.h
+++ b/tv/tuner/aidl/vts/functional/FrontendTests.h
@@ -95,6 +95,7 @@
     AssertionResult linkCiCam(int32_t ciCamId);
     AssertionResult unlinkCiCam(int32_t ciCamId);
     AssertionResult verifyHardwareInfo();
+    AssertionResult removeOutputPid(int32_t removePid);
 
     void getFrontendIdByType(FrontendType feType, int32_t& feId);
     void tuneTest(FrontendConfig frontendConf);