Portenta: lock BT on CY4343 at 115200

Author: facchinm

variants/PORTENTA_H7_M4/conf/mbed_app.json

@@ -11,6 +11,7 @@
       "rtos.main-thread-stack-size": 32768,
       "cordio.max-connections": 5,
       "target.macros_add": [
+        "BT_UART_NO_3M_SUPPORT",
         "NO_VTOR_RELOCATE",
         "METAL_INTERNAL",
         "VIRTIO_SLAVE_ONLY",

variants/PORTENTA_H7_M7/conf/mbed_app.json

@@ -16,6 +16,7 @@
       "mbed-trace.enable": true,
       "target.mbed_app_start": "0x8040000",
       "target.macros_add": [
+        "BT_UART_NO_3M_SUPPORT",
         "USB_DYNAMIC_CONFIGURATION",
         "METAL_INTERNAL",
         "VIRTIO_MASTER_ONLY",