fix gradle build fail when app is referencing support-v4

When app is still referencing legacy "support-v4", either directly
or indirectly (e.g. references leanback which references support-v4),
build fails due to missing "support-v4" in maven repository path.

The change add back the uploadArchives task for support-v4.

Change-Id: I5aea7304f9b68a8b70f8d6f1371d53fcbd3b1eff
diff --git a/core-combined/build.gradle b/core-combined/build.gradle
index 697bcd2..f0226e3 100644
--- a/core-combined/build.gradle
+++ b/core-combined/build.gradle
@@ -29,4 +29,36 @@
     }
 }
 
+uploadArchives {
+    repositories {
+        mavenDeployer {
+            repository(url: uri(rootProject.ext.supportRepoOut)) {
+            }
 
+            pom.project {
+                name 'Android Support Library v4'
+                description "The Support Library is a static library that you can add to your Android application in order to use APIs that are either not available for older platform versions or utility APIs that aren't a part of the framework APIs. Compatible on devices running API 4 or later."
+                url 'http://developer.android.com/tools/extras/support-library.html'
+                inceptionYear '2011'
+
+                licenses {
+                    license {
+                        name 'The Apache Software License, Version 2.0'
+                        url 'http://www.apache.org/licenses/LICENSE-2.0.txt'
+                        distribution 'repo'
+                    }
+                }
+
+                scm {
+                    url "http://source.android.com"
+                    connection "scm:git:https://android.googlesource.com/platform/frameworks/support"
+                }
+                developers {
+                    developer {
+                        name 'The Android Open Source Project'
+                    }
+                }
+            }
+        }
+    }
+}