arm: rmobile: Add support for ATMARK-TECHNO Armadillo-800EVA board

The Armadillo-800EVA board has Renesas R-Mobile R8A7740, 512MB DDR3-SDRAM,
Ethernet, and more.

This patch supports the following functions:
 - 512MB DDR3-SDRAM
 - Serial console (SCIF)
 - Ethernet MAC(MII) & PHY(SMSC)

Signed-off-by: Hideyuki Sano <hideyuki.sano.dn@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/MAINTAINERS b/MAINTAINERS
index 7c925d4..ed85406 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -994,6 +994,10 @@
 
 	kzm9g	SH73A0 (RMOBILE SoC)
 
+Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
+
+	armadillo-800eva	R8A7740 (RMOBILE SoC)
+
 -------------------------------------------------------------------------
 
 Unknown / orphaned boards: