fix incorrect aspect ratio label

2048x1536 was labeled as 3:2 when it is 4:3.

Change-Id: I981af139ba3d1c6f111772aeaccf95c679999370
diff --git a/cmds/flatland/Main.cpp b/cmds/flatland/Main.cpp
index d6ac3d2..e80dbb1 100644
--- a/cmds/flatland/Main.cpp
+++ b/cmds/flatland/Main.cpp
@@ -73,7 +73,7 @@
         },
     },
 
-    { "3:2 Single Static Window",
+    { "4:3 Single Static Window",
         2048, 1536, { 1536 },
         {
             {   // Window
@@ -117,7 +117,7 @@
         },
     },
 
-    { "3:2 App -> Home Transition",
+    { "4:3 App -> Home Transition",
         2048, 1536, { 1536 },
         {
             {   // Wallpaper
@@ -173,7 +173,7 @@
         },
     },
 
-    { "3:2 SurfaceView -> Home Transition",
+    { "4:3 SurfaceView -> Home Transition",
         2048, 1536, { 1536 },
         {
             {   // Wallpaper