stmhal: Rename pyb.Led to pyb.LED to conform to naming rules.

It's Light Emitting Diode, so should be LED.

stmhal/led.c

@@ -204,7 +204,7 @@ STATIC mp_obj_t led_obj_make_new(mp_obj_t type_in, uint n_args, uint n_kw, const
 
     // check led number
     if (!(0 <= led_id && led_id < NUM_LEDS)) {
-        nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "Led %d does not exist", led_id));
+        nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "LED %d does not exist", led_id));
     }
 
     // return static led object
@@ -255,7 +255,7 @@ STATIC MP_DEFINE_CONST_DICT(led_locals_dict, led_locals_dict_table);
 
 const mp_obj_type_t pyb_led_type = {
     { &mp_type_type },
-    .name = MP_QSTR_Led,
+    .name = MP_QSTR_LED,
     .print = led_obj_print,
     .make_new = led_obj_make_new,
     .locals_dict = (mp_obj_t)&led_locals_dict,

stmhal/modpyb.c

@@ -281,7 +281,7 @@ STATIC const mp_map_elem_t pyb_module_globals_table[] = {
     { MP_OBJ_NEW_QSTR(MP_QSTR_SD), (mp_obj_t)&pyb_sdcard_obj },
 #endif
 
-    { MP_OBJ_NEW_QSTR(MP_QSTR_Led), (mp_obj_t)&pyb_led_type },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_LED), (mp_obj_t)&pyb_led_type },
     { MP_OBJ_NEW_QSTR(MP_QSTR_I2C), (mp_obj_t)&pyb_i2c_type },
     { MP_OBJ_NEW_QSTR(MP_QSTR_USART), (mp_obj_t)&pyb_usart_type },
 

stmhal/qstrdefsport.h

@@ -66,8 +66,8 @@ Q(PULL_NONE)
 Q(PULL_UP)
 Q(PULL_DOWN)
 
-// for Led object
-Q(Led)
+// for LED object
+Q(LED)
 Q(on)
 Q(off)
 Q(toggle)