Add Lnbs for CTS

Bug: 150952758
Test: atest android.media.tv.tuner.cts.TunerTest
Change-Id: I0e1954ceaa93c110dabc669759675834f30b9524
diff --git a/tv/tuner/1.0/default/Lnb.h b/tv/tuner/1.0/default/Lnb.h
index f285cb9..1e97214 100644
--- a/tv/tuner/1.0/default/Lnb.h
+++ b/tv/tuner/1.0/default/Lnb.h
@@ -38,6 +38,7 @@
 class Lnb : public ILnb {
   public:
     Lnb();
+    Lnb(int id);
 
     virtual Return<Result> setCallback(const sp<ILnbCallback>& callback) override;
 
@@ -51,7 +52,10 @@
 
     virtual Return<Result> close() override;
 
+    int getId();
+
   private:
+    int mId;
     virtual ~Lnb();
 };
 
@@ -62,4 +66,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // ANDROID_HARDWARE_TV_TUNER_V1_0_LNB_H_
\ No newline at end of file
+#endif  // ANDROID_HARDWARE_TV_TUNER_V1_0_LNB_H_