Change test runner to suite runner for scalability.

Test: atest -v CtsNearbyMultiDevicesTestSuite
Bug: 214015364
Change-Id: I68b179460f16dac28413befd2742295d66b57471
diff --git a/nearby/tests/multidevices/host/Android.bp b/nearby/tests/multidevices/host/Android.bp
index bad8a26..533153a 100644
--- a/nearby/tests/multidevices/host/Android.bp
+++ b/nearby/tests/multidevices/host/Android.bp
@@ -16,11 +16,11 @@
     default_applicable_licenses: ["Android-Apache-2.0"],
 }
 
-// Run the tests: atest -v CtsSeekerDiscoverProviderTest
+// Run the tests: atest -v CtsNearbyMultiDevicesTestSuite
 python_test_host {
-    name: "CtsSeekerDiscoverProviderTest",
-    main: "seeker_discover_provider_test.py",
-    srcs: ["seeker_discover_provider_test.py"],
+    name: "CtsNearbyMultiDevicesTestSuite",
+    main: "suite_main.py",
+    srcs: ["*.py"],
     libs: ["NearbyMultiDevicesHostHelper"],
     test_suites: [
         "cts",