add ssi header file

#ifndef __MACH_SSI_H

#define __MACH_SSI_H

struct snd_ac97;

extern unsigned char imx_ssi_fiq_start, imx_ssi_fiq_end;

extern unsigned long imx_ssi_fiq_base, imx_ssi_fiq_tx_buffer, imx_ssi_fiq_rx_buffer;

struct imx_ssi_platform_data {

	unsigned int flags;

#define IMX_SSI_DMA            (1 << 0)

#define IMX_SSI_USE_AC97       (1 << 1)

	void (*ac97_reset) (struct snd_ac97 *ac97);

	void (*ac97_warm_reset)(struct snd_ac97 *ac97);

};

#endif /* __MACH_SSI_H */