rename platform_driver name "flash" to "sa1100-mtd"

"flash" is a very generic name for a platform_driver that is only
available on SA11x0.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Nicolas Pitre <nico@marvell.com>
diff --git a/arch/arm/mach-sa1100/generic.c b/arch/arm/mach-sa1100/generic.c
index c1fbd5b..23cfdd5 100644
--- a/arch/arm/mach-sa1100/generic.c
+++ b/arch/arm/mach-sa1100/generic.c
@@ -289,7 +289,7 @@
 };
 
 static struct platform_device sa11x0mtd_device = {
-	.name		= "flash",
+	.name		= "sa1100-mtd",
 	.id		= -1,
 };