M2354: Enable fault handler dump message

ccli8 · ccli8 · commit 260fc30c0c0c · 2020-10-15T11:58:08.000+08:00
diff --git a/targets/targets.json b/targets/targets.json
@@ -8989,7 +8989,6 @@
         ],
         "OUTPUT_EXT": "hex",
         "macros": [
-            "MBED_FAULT_HANDLER_DISABLED",
             "LPTICKER_DELAY_TICKS=4"
         ],
         "is_disk_virtual": true,
