Enable modules to generate partial MTS suites as well as the full MTS.

Test: built locally and verified contents.
Bug: 170318013
Change-Id: I35a5e6aa2d523f83ae54a196d37d96336c225097
Merged-In: I35a5e6aa2d523f83ae54a196d37d96336c225097
Exempt-From-Owner-Approval: approved in downstream branch

libs/incident/Android.bp

@@ -95,7 +95,7 @@ cc_test {
     name: "libincident_test",
     test_config: "AndroidTest.xml",
     defaults: ["libincidentpriv_defaults"],
-    test_suites: ["device-tests", "mts"],
+    test_suites: ["device-tests", "mts-statsd"],
     compile_multilib: "both",
     multilib: {
         lib64: {