config: fix syntax error in pinepone.conf

config/pine64,pinephone.conf

@@ -37,7 +37,7 @@ Rear: {
                 {Type: "Link", From: "ov5640", FromPad: 0, To: "sun6i-csi", ToPad: 0},
                 {Type: "Mode", Entity: "ov5640"}
             );
-        }
+        },
         {
             Width: 1280;
             Height: 720;