JSON: Correcting the Sensor Class field

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

src/l298/l298.json

@@ -3,7 +3,7 @@
     "Description": "API for the L298 Dual H-Bridge Motor Driver",
     "Sensor Class":
     {
-        "l298":
+        "L298":
         {
             "Name": "Dual H-bridge Motor Driver",
             "Description": "It was developed using the RobotBase Dual H-Bridge module. This module can support 2 DC motors, or one 2-phase stepper motor. It requires 3 pins per DC motor (or H-bridge), or 4 pins for the stepper motor (uses both H-bridges).",
@@ -35,4 +35,4 @@
             }
         }
     }
-}
+}