Targets: adapt NUCLEO_G071RB to CMSIS-pack info update

Author: ABOSTM

targets/targets.json

@@ -9879,10 +9879,6 @@
                 "macro_name": "HSE_VALUE"
             }
         },
-        "mbed_rom_start": "0x08000000",
-        "mbed_rom_size" : "0x20000",
-        "mbed_ram_start": "0x20000000",
-        "mbed_ram_size" : "0x9000",
         "extra_labels_add": [
             "STM32G0",
             "STM32G071xx",
@@ -9906,7 +9902,7 @@
         ],
         "detect_code": ["0221"],
         "release_versions": ["5"],
-        "device_name": "STM32G071xx",
+        "device_name": "STM32G071RBTx",
         "bootloader_supported": true
     },
     "__build_tools_metadata__": {

tools/export/iar/iar_definitions.json

@@ -29,7 +29,7 @@
     "STM32F302R8": {
         "OGChipSelectEditMenu": "STM32F302x8\tST STM32F302x8"
     },
-    "STM32G071xx": {
+    "STM32G071RBTx": {
         "OGChipSelectEditMenu": "STM32G071RB\tST STM32G071RB"
     },
     "EFM32LG990F256": {