wl12xx: allocate buffer the spi busy word from struct wl12xx

{

	struct spi_transfer t[3];

	struct spi_message m;

	char busy_buf[TNETWIF_READ_OFFSET_BYTES];

	u8 *busy_buf;

	u32 *cmd;

	cmd = &wl->buffer_cmd;

	busy_buf = wl->buffer_busyword;

	*cmd = 0;

	*cmd |= WSPI_CMD_READ;

	/* Busy and non busy words read */

	t[1].rx_buf = busy_buf;

	t[1].len = TNETWIF_READ_OFFSET_BYTES;

	t[1].len = WL12XX_BUSY_WORD_LEN;

	spi_message_add_tail(&t[1], &m);

	t[2].rx_buf = buf;

#define WSPI_INIT_CMD_LEN           8

#define TNETWIF_READ_OFFSET_BYTES  8

#define HW_ACCESS_WSPI_FIXED_BUSY_LEN \

		((TNETWIF_READ_OFFSET_BYTES - 4) / sizeof(u32))

		((WL12XX_BUSY_WORD_LEN - 4) / sizeof(u32))

#define HW_ACCESS_WSPI_INIT_CMD_MASK  0

				  CFG_RX_AUTH_EN |  \

				  CFG_RX_ASSOC_EN)

#define WL12XX_BUSY_WORD_LEN 8

struct boot_attr {

	u32 radio_type;

	u32 buffer_32;

	u32 buffer_cmd;

	u8 buffer_busyword[WL12XX_BUSY_WORD_LEN];

};

int wl12xx_plt_start(struct wl12xx *wl);