SPL: ONENAND: Support SPL to boot u-boot from OneNAND.

This patch will allow use SPL to boot an u-boot from the OneNAND.

Tested with IGEPv2 board with a OneNAND from Numonyx

Signed-off-by: Enric Balletbo i Serra <eballetbo@iseebcn.com>
[trini: Add <spl.h> hunk to fix warning]
Signed-off-by: Tom Rini <trini@ti.com>
diff --git a/common/spl/Makefile b/common/spl/Makefile
index 5698a23..da2afc1 100644
--- a/common/spl/Makefile
+++ b/common/spl/Makefile
@@ -18,6 +18,7 @@
 COBJS-$(CONFIG_SPL_NOR_SUPPORT) += spl_nor.o
 COBJS-$(CONFIG_SPL_YMODEM_SUPPORT) += spl_ymodem.o
 COBJS-$(CONFIG_SPL_NAND_SUPPORT) += spl_nand.o
+COBJS-$(CONFIG_SPL_ONENAND_SUPPORT) += spl_onenand.o
 COBJS-$(CONFIG_SPL_NET_SUPPORT) += spl_net.o
 endif