Correct layout macro name in Cannonkeys Ortho75 info.json (#12581)

keyboards/cannonkeys/ortho75/info.json

@@ -5,7 +5,7 @@
   "width": 15,
   "height": 5,
   "layouts": {
-    "LAYOUT_ortho_5x12": {
+    "LAYOUT_ortho_5x15": {
       "layout": [
         {"label":"`", "x":0, "y":0},
         {"label":"1", "x":1, "y":0},