JSON: Correcting bad sensor names

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

src/ds1307/ds1307.json

@@ -3,7 +3,7 @@
     "Description": "DS1307 Real-Time Clock library",
     "Sensor Class":
     {
-        "ds1307":
+        "DS1307":
         {
             "Name": "DS1307 Real Time Clock (RTC) Module",
             "Description": "UPM module for the DS1307-based real-time clock. The clock can provide information about seconds, minutes, hours, day of the week, day of the month, month, and year. It can operate in either a 24-hour or a 12-hour format. This device can also output a square wave at 1Khz, 4Khz, 8Khz, and 32Khz. However, this capability is not implemented in this module.",
@@ -38,4 +38,4 @@
             }
         }
     }
-}
+}