stm32/boards/NUCLEO_WB55: Fix LED ordering.

These were commented correctly by their colour, but in the wrong order with
respect to the PCB silkscreen.

Fixes issue #8054.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

ports/stm32/boards/NUCLEO_WB55/mpconfigboard.h

@@ -51,9 +51,9 @@
 #define MICROPY_HW_USRSW_PRESSED    (0)
 
 // LEDs
-#define MICROPY_HW_LED1             (pin_B1) // red
+#define MICROPY_HW_LED1             (pin_B5) // blue
 #define MICROPY_HW_LED2             (pin_B0) // green
-#define MICROPY_HW_LED3             (pin_B5) // blue
+#define MICROPY_HW_LED3             (pin_B1) // red
 #define MICROPY_HW_LED_ON(pin)      (mp_hal_pin_high(pin))
 #define MICROPY_HW_LED_OFF(pin)     (mp_hal_pin_low(pin))