Move to Kotlin friendly supportLibrary extension calling.

Test: None
Change-Id: I317174fb90b440ce036230d604d81343f32c4cfb
diff --git a/v17/leanback/build.gradle b/v17/leanback/build.gradle
index b0f5abf..d0710a7 100644
--- a/v17/leanback/build.gradle
+++ b/v17/leanback/build.gradle
@@ -33,9 +33,9 @@
 }
 
 supportLibrary {
-    name 'Android Support Leanback v17'
-    publish true
-    inceptionYear '2014'
-    description 'Android Support Leanback v17'
-    legacySourceLocation true
+    name = "Android Support Leanback v17"
+    publish = true
+    inceptionYear = "2014"
+    description = "Android Support Leanback v17"
+    legacySourceLocation = true
 }