Adding a TS filter functionality into the Demux default impl

Test: atest
Bug: 135709325
Change-Id: I149104fd4c7d1ce413036b147365a49973455e72
diff --git a/tv/tuner/1.0/default/Lnb.h b/tv/tuner/1.0/default/Lnb.h
index df7e0fe..4c251f7 100644
--- a/tv/tuner/1.0/default/Lnb.h
+++ b/tv/tuner/1.0/default/Lnb.h
@@ -38,12 +38,14 @@
   public:
     Lnb();
 
-    virtual Return<Result> setVoltage(FrontendLnbVoltage voltage);
+    virtual Return<Result> setVoltage(FrontendLnbVoltage voltage) override;
 
     virtual Return<Result> setTone(FrontendLnbTone tone) override;
 
     virtual Return<Result> setSatellitePosition(FrontendLnbPosition position) override;
 
+    virtual Return<Result> sendDiseqcMessage(const hidl_vec<uint8_t>& diseqcMessage) override;
+
     virtual Return<Result> close() override;
 
   private: