Fix issue where bazel-force-enabled-modules aren't actually analyzed.

Bug: 273910287
Test: run mixed_mode_test.sh

Change-Id: I309c423b6e7f505ad1db0d9327e7de6b8298dfe9

android/test_config.go

@@ -65,6 +65,7 @@ func TestConfig(buildDir string, env map[string]string, bp string, fs map[string
 		BuildMode:                 BazelProdMode,
 		mixedBuildDisabledModules: make(map[string]struct{}),
 		mixedBuildEnabledModules:  make(map[string]struct{}),
+		bazelForceEnabledModules:  make(map[string]struct{}),
 	}
 	config.deviceConfig = &deviceConfig{
 		config: config,