Add CardView to Gradle build of support lib.

Also fix leanback artifact name.

Change-Id: I22a09afe2c9bf0099173ad04ad119d5b16fa8636
diff --git a/settings.gradle b/settings.gradle
index 5444b81..856c8d9 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -19,6 +19,9 @@
 include ':support-recyclerview-v7'
 project(':support-recyclerview-v7').projectDir = new File(rootDir, 'v7/recyclerview')
 
+include ':support-cardview-v7'
+project(':support-cardview-v7').projectDir = new File(rootDir, 'v7/cardview')
+
 include ':support-v13'
 project(':support-v13').projectDir = new File(rootDir, 'v13')