Make dvr tests a separate module

Test: atest VtsHalTvTunerV1_0TargetTest
Bug: 150989084
Change-Id: I35d717f357b176d5cbec5d154f4df30fd2c4a18e
diff --git a/tv/tuner/1.0/vts/functional/DemuxTests.h b/tv/tuner/1.0/vts/functional/DemuxTests.h
index f405a79..31b3e7b 100644
--- a/tv/tuner/1.0/vts/functional/DemuxTests.h
+++ b/tv/tuner/1.0/vts/functional/DemuxTests.h
@@ -40,8 +40,6 @@
 
 class DemuxTests {
   public:
-    sp<ITuner> mService;
-
     void setService(sp<ITuner> tuner) { mService = tuner; }
 
     AssertionResult openDemux(sp<IDemux>& demux, uint32_t& demuxId);
@@ -53,5 +51,6 @@
 
     static AssertionResult success() { return ::testing::AssertionSuccess(); }
 
+    sp<ITuner> mService;
     sp<IDemux> mDemux;
 };
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