Add our integration tests to cts

Note: per_testcase_directory: true is added to the two tests sharing
MicrodroidTestApp as a support file. This is needed to avoid having
duplicated install rules for the app file. Without that, we hit

build/make/core/main.mk:1430: error: overriding commands for target
`out/host/linux-x86/cts/android-cts/testcases/MicrodroidTestApp.apk',
previously defined at build/make/core/main.mk:1430

Bug: 204979196
Test: check android-cts-tests_list.zip in the test_suites_[arm64|x86_64]
targets to see if the added tests are here.

Change-Id: Idcea518db04407da993d866b114f17f90be20209
diff --git a/TEST_MAPPING b/TEST_MAPPING
index 6338c82..7be81a8 100644
--- a/TEST_MAPPING
+++ b/TEST_MAPPING
@@ -7,7 +7,7 @@
       "name": "ComposHostTestCases"
     },
     {
-      "name": "VirtualizationTestCases"
+      "name": "VirtualizationTestCases.64"
     },
     {
       "name": "MicrodroidTestApp"