kconfig: add board Kconfig and defconfig files

This commit adds:
 - arch/${ARCH}/Kconfig
    provide a menu to select target boards
 - board/${VENDOR}/${BOARD}/Kconfig or board/${BOARD}/Kconfig
    set CONFIG macros to the appropriate values for each board
 - configs/${TARGET_BOARD}_defconfig
    default setting of each board

(This commit was automatically generated by a conversion script
based on boards.cfg)

In Linux Kernel, defconfig files are located under
arch/${ARCH}/configs/ directory.
It works in Linux Kernel since ARCH is always given from the
command line for cross compile.

But in U-Boot, ARCH is not given from the command line.
Which means we cannot know ARCH until the board configuration is done.
That is why all the "*_defconfig" files should be gathered into a
single directory ./configs/.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>

board/gdsys/405ep/Kconfig

@@ -0,0 +1,63 @@
+if TARGET_DLVISION_10G
+
+config SYS_BOARD
+	string
+	default "405ep"
+
+config SYS_VENDOR
+	string
+	default "gdsys"
+
+config SYS_CONFIG_NAME
+	string
+	default "dlvision-10g"
+
+endif
+
+if TARGET_IO
+
+config SYS_BOARD
+	string
+	default "405ep"
+
+config SYS_VENDOR
+	string
+	default "gdsys"
+
+config SYS_CONFIG_NAME
+	string
+	default "io"
+
+endif
+
+if TARGET_IOCON
+
+config SYS_BOARD
+	string
+	default "405ep"
+
+config SYS_VENDOR
+	string
+	default "gdsys"
+
+config SYS_CONFIG_NAME
+	string
+	default "iocon"
+
+endif
+
+if TARGET_NEO
+
+config SYS_BOARD
+	string
+	default "405ep"
+
+config SYS_VENDOR
+	string
+	default "gdsys"
+
+config SYS_CONFIG_NAME
+	string
+	default "neo"
+
+endif

board/gdsys/405ex/Kconfig

@@ -0,0 +1,15 @@
+if TARGET_IO64
+
+config SYS_BOARD
+	string
+	default "405ex"
+
+config SYS_VENDOR
+	string
+	default "gdsys"
+
+config SYS_CONFIG_NAME
+	string
+	default "io64"
+
+endif

board/gdsys/dlvision/Kconfig

@@ -0,0 +1,15 @@
+if TARGET_DLVISION
+
+config SYS_BOARD
+	string
+	default "dlvision"
+
+config SYS_VENDOR
+	string
+	default "gdsys"
+
+config SYS_CONFIG_NAME
+	string
+	default "dlvision"
+
+endif

board/gdsys/gdppc440etx/Kconfig

@@ -0,0 +1,15 @@
+if TARGET_GDPPC440ETX
+
+config SYS_BOARD
+	string
+	default "gdppc440etx"
+
+config SYS_VENDOR
+	string
+	default "gdsys"
+
+config SYS_CONFIG_NAME
+	string
+	default "gdppc440etx"
+
+endif

board/gdsys/intip/Kconfig

@@ -0,0 +1,15 @@
+if TARGET_INTIP
+
+config SYS_BOARD
+	string
+	default "intip"
+
+config SYS_VENDOR
+	string
+	default "gdsys"
+
+config SYS_CONFIG_NAME
+	string
+	default "intip"
+
+endif

board/gdsys/p1022/Kconfig

@@ -0,0 +1,15 @@
+if TARGET_CONTROLCENTERD
+
+config SYS_BOARD
+	string
+	default "p1022"
+
+config SYS_VENDOR
+	string
+	default "gdsys"
+
+config SYS_CONFIG_NAME
+	string
+	default "controlcenterd"
+
+endif