Add bootloader support for UBLOX_C030_U201 (ARMmbed#53)

* Add support for UBLOX_C030_U201

Author: Marcelo Salazar

mbed_app.json

@@ -61,6 +61,11 @@
             "update-client.application-details": "0x08020000",
             "firmware_metadata_header_size": "0x400"
         },
+        "UBLOX_C030_U201": {
+            "firmware_metadata_header_address": "0x08020000",
+            "update-client.application-details": "0x08020000",
+            "firmware_metadata_header_size": "0x800"
+        },
         "DISCO_L476VG": {
             "firmware_metadata_header_address": "0x08020000",
             "update-client.application-details": "0x08020000",