Clean up package names.

Use license name unless package name is given.

Change the package name for the default android license to Android.

Test: m all
Change-Id: I0049b08fc4955a838e33c8bcfed104dbbf8ec7b1
diff --git a/android/androidmk.go b/android/androidmk.go
index 9317567..7947376 100644
--- a/android/androidmk.go
+++ b/android/androidmk.go
@@ -505,6 +505,8 @@
 	// TODO(b/151177513): Does this code need to set LOCAL_MODULE_IS_CONTAINER ?
 	if amod.commonProperties.Effective_package_name != nil {
 		a.SetString("LOCAL_LICENSE_PACKAGE_NAME", *amod.commonProperties.Effective_package_name)
+	} else if len(amod.commonProperties.Effective_licenses) > 0 {
+		a.SetString("LOCAL_LICENSE_PACKAGE_NAME", strings.Join(amod.commonProperties.Effective_licenses, " "))
 	}
 	a.SetString("LOCAL_MODULE_CLASS", a.Class)
 	a.SetString("LOCAL_PREBUILT_MODULE_FILE", a.OutputFile.String())