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>
diff --git a/board/logicpd/am3517evm/Kconfig b/board/logicpd/am3517evm/Kconfig
new file mode 100644
index 0000000..9bc5ae5
--- /dev/null
+++ b/board/logicpd/am3517evm/Kconfig
@@ -0,0 +1,23 @@
+if TARGET_AM3517_EVM
+
+config SYS_CPU
+	string
+	default "armv7"
+
+config SYS_BOARD
+	string
+	default "am3517evm"
+
+config SYS_VENDOR
+	string
+	default "logicpd"
+
+config SYS_SOC
+	string
+	default "omap3"
+
+config SYS_CONFIG_NAME
+	string
+	default "am3517_evm"
+
+endif
diff --git a/board/logicpd/imx27lite/Kconfig b/board/logicpd/imx27lite/Kconfig
new file mode 100644
index 0000000..f107267
--- /dev/null
+++ b/board/logicpd/imx27lite/Kconfig
@@ -0,0 +1,47 @@
+if TARGET_IMX27LITE
+
+config SYS_CPU
+	string
+	default "arm926ejs"
+
+config SYS_BOARD
+	string
+	default "imx27lite"
+
+config SYS_VENDOR
+	string
+	default "logicpd"
+
+config SYS_SOC
+	string
+	default "mx27"
+
+config SYS_CONFIG_NAME
+	string
+	default "imx27lite"
+
+endif
+
+if TARGET_MAGNESIUM
+
+config SYS_CPU
+	string
+	default "arm926ejs"
+
+config SYS_BOARD
+	string
+	default "imx27lite"
+
+config SYS_VENDOR
+	string
+	default "logicpd"
+
+config SYS_SOC
+	string
+	default "mx27"
+
+config SYS_CONFIG_NAME
+	string
+	default "magnesium"
+
+endif
diff --git a/board/logicpd/imx31_litekit/Kconfig b/board/logicpd/imx31_litekit/Kconfig
new file mode 100644
index 0000000..ae3343b
--- /dev/null
+++ b/board/logicpd/imx31_litekit/Kconfig
@@ -0,0 +1,23 @@
+if TARGET_IMX31_LITEKIT
+
+config SYS_CPU
+	string
+	default "arm1136"
+
+config SYS_BOARD
+	string
+	default "imx31_litekit"
+
+config SYS_VENDOR
+	string
+	default "logicpd"
+
+config SYS_SOC
+	string
+	default "mx31"
+
+config SYS_CONFIG_NAME
+	string
+	default "imx31_litekit"
+
+endif
diff --git a/board/logicpd/omap3som/Kconfig b/board/logicpd/omap3som/Kconfig
new file mode 100644
index 0000000..daaefa6
--- /dev/null
+++ b/board/logicpd/omap3som/Kconfig
@@ -0,0 +1,23 @@
+if TARGET_OMAP3_LOGIC
+
+config SYS_CPU
+	string
+	default "armv7"
+
+config SYS_BOARD
+	string
+	default "omap3som"
+
+config SYS_VENDOR
+	string
+	default "logicpd"
+
+config SYS_SOC
+	string
+	default "omap3"
+
+config SYS_CONFIG_NAME
+	string
+	default "omap3_logic"
+
+endif
diff --git a/board/logicpd/zoom1/Kconfig b/board/logicpd/zoom1/Kconfig
new file mode 100644
index 0000000..3199130
--- /dev/null
+++ b/board/logicpd/zoom1/Kconfig
@@ -0,0 +1,23 @@
+if TARGET_OMAP3_ZOOM1
+
+config SYS_CPU
+	string
+	default "armv7"
+
+config SYS_BOARD
+	string
+	default "zoom1"
+
+config SYS_VENDOR
+	string
+	default "logicpd"
+
+config SYS_SOC
+	string
+	default "omap3"
+
+config SYS_CONFIG_NAME
+	string
+	default "omap3_zoom1"
+
+endif