km/common: add eccmode to kernel commandline

If CONFIG_NAND_ECC_BCH is chosen from in the board configuration we add
an ecc mode to the kernel commandline.
Signed-off-by: NHolger Brunck <holger.brunck@keymile.com>

include/configs/km/keymile-common.h

@@ -150,8 +150,10 @@
 
 #ifdef CONFIG_NAND_ECC_BCH
 #define CONFIG_KM_UIMAGE_NAME "ecc_bch_uImage\0"
+#define CONFIG_KM_ECC_MODE    " eccmode=bch"
 #else
 #define CONFIG_KM_UIMAGE_NAME "uImage\0"
+#define CONFIG_KM_ECC_MODE
 #endif
 
 /*
@@ -190,6 +192,7 @@
 		":${hostname}:${netdev}:off3"				\
 		" console=" CONFIG_KM_CONSOLE_TTY ",${baudrate}"	\
 		" mem=${kernelmem} init=${init}"			\
+		CONFIG_KM_ECC_MODE					\
 		" phram.phram=phvar,${varaddr}," __stringify(CONFIG_KM_PHRAM)\
 		" " CONFIG_KM_UBI_LINUX_MTD " "				\
 		CONFIG_KM_DEF_BOOT_ARGS_CPU				\