board/km: add support for expu1 design based on nxp

The EXPU1 design is a new 40G capable ethernet service unit card for
Hitachi-Powergrids wired-com product lines.

The base SoC is same as for already added SELI8 card, consequently the
already added u-boot support for SELI8 is reused.

Signed-off-by: Rainer Boschung <rainer.boschung@hitachi-powergrids.com>
Signed-off-by: Aleksandar Gerasimovski <aleksandar.gerasimovski@hitachi-powergrids.com>
[Fixed new line error at EOF]
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/board/keymile/Kconfig b/board/keymile/Kconfig
index 86a6670..3a6c63b 100644
--- a/board/keymile/Kconfig
+++ b/board/keymile/Kconfig
@@ -64,6 +64,13 @@
 	help
 	  IFC Base Address for PAXx FPGA.
 
+config SYS_CLIPS_BASE
+	hex "CLIPS IFC Base Address"
+	default 0x78000000
+	depends on ARCH_LS1021A
+	help
+	  IFC Base Address for CLIPS FPGA.
+
 config KM_CONSOLE_TTY
 	string "KM Console"
 	default "ttyS0"