arm: kirkwood: Add CONFIG_SUPPORT_PASSING_ATAGS

Add CONFIG_SUPPORT_PASSING_ATAGS and friends to support legacy
image method of booting. Debian and OpenWrt installer use uImage
with appended DTB for these Kirkwood boards.

Signed-off-by: Tony Dinh <mibodhi@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
diff --git a/configs/goflexhome_defconfig b/configs/goflexhome_defconfig
index 0856a31..aeb4a7d 100644
--- a/configs/goflexhome_defconfig
+++ b/configs/goflexhome_defconfig
@@ -4,6 +4,9 @@
 CONFIG_ARCH_CPU_INIT=y
 CONFIG_SYS_THUMB_BUILD=y
 CONFIG_ARCH_KIRKWOOD=y
+CONFIG_SUPPORT_PASSING_ATAGS=y
+CONFIG_CMDLINE_TAG=y
+CONFIG_INITRD_TAG=y
 CONFIG_SYS_KWD_CONFIG="board/Seagate/goflexhome/kwbimage.cfg"
 CONFIG_SYS_TEXT_BASE=0x600000
 CONFIG_NR_DRAM_BANKS=2