m68k: Remove M5475x boards

These board has not been converted to CONFIG_DM_PCI by the deadline.
Remove them.  As this is the last of the mcf547x_8x family of boards,
remove that support as well.

Cc: TsiChung Liew <Tsi-Chung.Liew@nxp.com>
Signed-off-by: Tom Rini <trini@konsulko.com>

include/fsl_dspi.h

@@ -21,14 +21,8 @@ struct dspi {
 	u32 irsr;	/* 0x30 */
 	u32 tfr;	/* 0x34 - PUSHR */
 	u32 rfr;	/* 0x38 - POPR */
-#ifdef CONFIG_MCF547x_8x
-	u32 tfdr[4];	/* 0x3C */
-	u8 resv2[0x30];	/* 0x40 */
-	u32 rfdr[4];	/* 0x7C */
-#else
 	u32 tfdr[16];	/* 0x3C */
 	u32 rfdr[16];	/* 0x7C */
-#endif
 };
 
 /* Module configuration */