Convert CONFIG_SYS_KWD_CONFIG to Kconfig
This converts the following to Kconfig:
CONFIG_SYS_KWD_CONFIG
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/nsa310s_defconfig b/configs/nsa310s_defconfig
index 501e82b..46ca3ba 100644
--- a/configs/nsa310s_defconfig
+++ b/configs/nsa310s_defconfig
@@ -3,6 +3,7 @@
CONFIG_SYS_DCACHE_OFF=y
CONFIG_ARCH_CPU_INIT=y
CONFIG_ARCH_KIRKWOOD=y
+CONFIG_SYS_KWD_CONFIG="board/zyxel/nsa310s/kwbimage.cfg"
CONFIG_SYS_TEXT_BASE=0x600000
CONFIG_NR_DRAM_BANKS=2
CONFIG_TARGET_NSA310S=y