Change the dist file path for sdk library

The dist file path is changed from apistubs/{api_scope}/*.jar to
apistubs/{owner}/{api_scope}/*.jar. it makes easy to get stub files
when updating prebuilts/sdk by making it possible to distinguish
between Android libraries and Google libraries.
And Onwer() function is added to ModuleBase for getting onwer info.

Test: make -j40 PRODUCT-sdk_phone_armv7-sdk dist sdk_repo
Change-Id: I50069aff6664901e6c9129d69643a414ee5e41d0
diff --git a/android/module.go b/android/module.go
index 4d9ddd4..ae12274 100644
--- a/android/module.go
+++ b/android/module.go
@@ -602,6 +602,10 @@
 	return Bool(p.commonProperties.Recovery)
 }
 
+func (a *ModuleBase) Owner() string {
+	return String(a.commonProperties.Owner)
+}
+
 func (a *ModuleBase) generateModuleTarget(ctx ModuleContext) {
 	allInstalledFiles := Paths{}
 	allCheckbuildFiles := Paths{}