MAINTAINERS: add entry for Atmel sdhci-of-at91 driver

Add an entry for Atmel SDMMC device.

Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
diff --git a/MAINTAINERS b/MAINTAINERS
index 569568f..a9638eb 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1882,6 +1882,12 @@
 S:	Supported
 F:	drivers/mtd/nand/atmel_nand*
 
+ATMEL SDMMC DRIVER
+M:	Ludovic Desroches <ludovic.desroches@atmel.com>
+L:	linux-mmc@vger.kernel.org
+S:	Supported
+F:	drivers/mmc/host/sdhci-of-at91.c
+
 ATMEL SPI DRIVER
 M:	Nicolas Ferre <nicolas.ferre@atmel.com>
 S:	Supported