mips: octeon: Add Octeon III NIC23 board support

This patch adds the basic support for the PCIe target board equipped
with the Octeon III CN2350 SoC.

Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/board/Marvell/octeon_nic23/MAINTAINERS b/board/Marvell/octeon_nic23/MAINTAINERS
new file mode 100644
index 0000000..cd5148d
--- /dev/null
+++ b/board/Marvell/octeon_nic23/MAINTAINERS
@@ -0,0 +1,7 @@
+OCTEON_NIC23 BOARD
+M:	Aaron Williams <awilliams@marvell.com>
+S:	Maintained
+F:	board/Marvell/octeon_nic23/*
+F:	configs/octeon_nic23_defconfig
+F:	include/configs/octeon_nic23.h
+F:	arch/mips/dts/mrvl,octeon-nic23.dts