[Keyboard] add info.json for bongopad (#15355)

Co-authored-by: Drashna Jaelre <drashna@live.com>
Co-authored-by: Ryan <fauxpark@gmail.com>
Co-authored-by: Joel Challis <git@zvecr.com>

keyboards/ll3macorn/bongopad/info.json

@@ -0,0 +1,10 @@
+{
+	"keyboard_name": "Bongopad", 
+	"url": "https://github.com/qmk/qmk_firmware/tree/master/keyboards/ll3macorn/bongopad", 
+	"maintainer": "Ll3macorn", 
+	"layouts": {
+	    "LAYOUT_default": {
+		"layout": [{"x":0, "y":0}, {"x":0, "y":1}, {"x":1, "y":1}, {"x":2, "y":1}, {"x":0, "y":2}, {"x":1, "y":2}, {"x":2, "y":2}, {"x":0, "y":3}, {"x":1, "y":3}, {"x":2, "y":3}]
+	    }
+	}
+    }