Implement ProgramSelector at HIDL layer.

No front-end implementation yet.

Bug: b/32621193
Test: VTS
Change-Id: I48f034e709254836cad35bbeb4285c3c42a9e1cd
diff --git a/broadcastradio/1.1/default/VirtualRadio.h b/broadcastradio/1.1/default/VirtualRadio.h
index e1918a0..23cb06c 100644
--- a/broadcastradio/1.1/default/VirtualRadio.h
+++ b/broadcastradio/1.1/default/VirtualRadio.h
@@ -33,7 +33,7 @@
     VirtualRadio(std::vector<VirtualProgram> initialList);
 
     std::vector<VirtualProgram> getProgramList();
-    bool getProgram(uint32_t channel, VirtualProgram& program);
+    bool getProgram(const ProgramSelector& selector, VirtualProgram& program);
 
    private:
     std::mutex mMut;