simplify board API, adding stm32f3 discovery

- remove board header since it is not used

hw/bsp/pca10056/board_pca10056.c

@@ -26,6 +26,8 @@
 #ifdef BOARD_PCA10056
 
 #include "bsp/board.h"
+
+#include "nrfx.h"
 #include "nrfx/hal/nrf_gpio.h"
 #include "nrfx/drivers/include/nrfx_power.h"
 #include "nrfx/drivers/include/nrfx_qspi.h"

hw/bsp/pca10056/board_pca10056.h

@@ -1,47 +0,0 @@
-/* 
- * The MIT License (MIT)
- *
- * Copyright (c) 2018, hathach (tinyusb.org)
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- *
- * This file is part of the TinyUSB stack.
- */
-#ifndef BOARD_PCA10056_H_
-#define BOARD_PCA10056_H_
-
-#include "nrfx.h"
-#include "nrfx_qspi.h"
-
-#ifdef __cplusplus
- extern "C" {
-#endif
-
-// Flash type used for MSC example
-#define BOARD_MSC_FLASH_QSPI
-#define BOARD_MSC_FLASH_SIZE    (8*1024*1024)
-
-//#define BOARD_MSC_FLASH_RAM
-// #define BOARD_MSC_FLASH_SIZE    (8*1024) // 8KB is the smallest size that windows allow to mount
-
-#ifdef __cplusplus
- }
-#endif
-
-#endif /* BOARD_PCA10056_H_ */