ARM: ux500: Stop passing DMA platform data though AUXDATA

The DMA platform data is now empty due to some recent refactoring,
so there is no longer a requirement to pass it though.

Acked-by: Arnd Bergmann <[e-mail]>
Signed-off-by: Lee Jones <[e-mail]>
Signed-off-by: Linus Walleij <[e-mail]>

arch/arm/mach-ux500/cpu-db8500.c

···
 	OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80125000,
 		"ux500-msp-i2s.3", &msp3_platform_data),
 	/* Requires clock name bindings and channel address lookup table. */
-	OF_DEV_AUXDATA("stericsson,db8500-dma40", 0x801C0000,
-		       "dma40.0", &dma40_plat_data),
+	OF_DEV_AUXDATA("stericsson,db8500-dma40", 0x801C0000, "dma40.0", NULL),
 	{},
 };