sh: Renesas Solutions SH7763RDP board support

SH7763RDP has SCIF, NOR Flash, Ethernet, USB host, LCDC and MMC.
In this patch, support SCIF, NOR Flash, and Ethernet.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/board/sh7763rdp/config.mk b/board/sh7763rdp/config.mk
new file mode 100644
index 0000000..c52dbfd
--- /dev/null
+++ b/board/sh7763rdp/config.mk
@@ -0,0 +1,11 @@
+#
+# board/sh7763rdp/config.mk
+#
+# TEXT_BASE refers to image _after_ relocation.
+#
+# NOTE: Must match value used in u-boot.lds (in this directory).
+#
+
+TEXT_BASE = 0x8FFC0000
+
+# PLATFORM_CPPFLAGS += -DCONFIG_MULTIBOOT