board/BuR: move everything possible from board's headerfile to KConfig

We drop everything possible things from board headerfiles and replace
this functionality with responsible settings in Kconfig (_defconfig).

Signed-off-by: Hannes Schmelzer <oe5hpm@oevsv.at>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/kwb_defconfig b/configs/kwb_defconfig
index 7bdc6b6..4d2aa6c 100644
--- a/configs/kwb_defconfig
+++ b/configs/kwb_defconfig
@@ -2,6 +2,7 @@
 CONFIG_TARGET_KWB=y
 CONFIG_SPL=y
 CONFIG_SYS_EXTRA_OPTIONS="SERIAL1,CONS_INDEX=1"
+CONFIG_HUSH_PARSER=y
 # CONFIG_CMD_BOOTD is not set
 # CONFIG_CMD_BOOTM is not set
 # CONFIG_CMD_GO is not set
@@ -13,9 +14,18 @@
 # CONFIG_CMD_LOADB is not set
 # CONFIG_CMD_LOADS is not set
 # CONFIG_CMD_FLASH is not set
+CONFIG_CMD_I2C=y
+CONFIG_CMD_USB=y
 # CONFIG_CMD_FPGA is not set
 CONFIG_CMD_GPIO=y
 # CONFIG_CMD_ITEST is not set
 # CONFIG_CMD_SETEXPR is not set
+CONFIG_CMD_DHCP=y
 # CONFIG_CMD_NFS is not set
+CONFIG_CMD_PING=y
+CONFIG_CMD_TIME=y
+CONFIG_NETCONSOLE=y
 CONFIG_SYS_NS16550=y
+CONFIG_USB=y
+CONFIG_USB_MUSB_HOST=y
+CONFIG_USB_STORAGE=y