Add DescramberTests in Tuner VTS

Note that this test also includes MediaCasService openSession test
to pass the session id as the key token to the IDescrambler

Test: atest VtsHalTvTunerV1_0TargetTest
Bug: 150987138
Change-Id: Iacd4ad5fcd957a6e3bb4a5730337ecaa3adc0aa2
diff --git a/tv/tuner/1.0/vts/functional/Android.bp b/tv/tuner/1.0/vts/functional/Android.bp
index b152a29..8c08873 100644
--- a/tv/tuner/1.0/vts/functional/Android.bp
+++ b/tv/tuner/1.0/vts/functional/Android.bp
@@ -23,8 +23,12 @@
         "DemuxTests.cpp",
         "FilterTests.cpp",
         "DvrTests.cpp",
+        "DescramblerTests.cpp",
     ],
     static_libs: [
+        "android.hardware.cas@1.0",
+        "android.hardware.cas@1.1",
+        "android.hardware.cas@1.2",
         "android.hardware.tv.tuner@1.0",
         "android.hidl.allocator@1.0",
         "android.hidl.memory@1.0",