MAINTAINERS: add entry for Atmel DMA driver

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>

MAINTAINERS

@@ -1331,6 +1331,14 @@ M:	Nicolas Ferre <nicolas.ferre@atmel.com>
 S:	Supported
 F:	drivers/tty/serial/atmel_serial.c
 
+ATMEL DMA DRIVER
+M:	Nicolas Ferre <nicolas.ferre@atmel.com>
+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
+
 ATMEL ISI DRIVER
 M:	Josh Wu <josh.wu@atmel.com>
 L:	linux-media@vger.kernel.org