MAINTAINERS: fix arch/arm/mach-at91/include/mach/at_hdmac.h

This file was moved to include/linux/platform_data/dma-atmel.h by commit
7cdc39e ("ARM: at91: move platform_data definitions").

Signed-off-by: Cesar Eduardo Barros <cesarb@cesarb.net>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

MAINTAINERS

@@ -1402,7 +1402,7 @@ L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Supported
 F:	drivers/dma/at_hdmac.c
 F:	drivers/dma/at_hdmac_regs.h
-F:	arch/arm/mach-at91/include/mach/at_hdmac.h
+F:	include/linux/platform_data/dma-atmel.h
 
 ATMEL ISI DRIVER
 M:	Josh Wu <josh.wu@atmel.com>