JSON: Correcting bad sensor names

Signed-off-by: malikabh <abhishek.malik@intel.com>

src/grovecollision/grovecollision.json

@@ -3,7 +3,7 @@
     "Description": "API for the Grove Collision Sensor",
     "Sensor Class":
     {
-        "grovecollision":
+        "GroveCollision":
         {
             "Name": "Grove Collision Sensor",
             "Description": "The Grove Collision Sensor can detect whether any collision movement or vibration happens. It outputs a low pulse signal when vibration is detected.",
@@ -38,4 +38,4 @@
             }
         }
     }
-}
+}