Fix correct namespace for Fresco's ui-core module

Reviewed By: oprisnik

Differential Revision: D64183877

fbshipit-source-id: 0477ebbffdb5fd626f8c03c3995e8433a0454bc3

Author: cortinico

ui-core/build.gradle

@@ -18,7 +18,7 @@ android {
     buildToolsVersion FrescoConfig.buildToolsVersion
     compileSdkVersion FrescoConfig.compileSdkVersion
 
-    namespace "com.facebook.fresco.ui.common"
+    namespace "com.facebook.fresco.ui.core"
 
     defaultConfig {
         minSdkVersion FrescoConfig.minSdkVersion