board: samsung: add initial Espresso7420 board support

Espresso7420 is a development/evaluation board for Exynos7420 SoC. It
includes multiple onboard compoments (EMMC/Codec) and various
interconnects (USB/HDMI).

Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
diff --git a/board/samsung/espresso7420/Kconfig b/board/samsung/espresso7420/Kconfig
new file mode 100644
index 0000000..62251c5
--- /dev/null
+++ b/board/samsung/espresso7420/Kconfig
@@ -0,0 +1,16 @@
+if TARGET_ESPRESSO7420
+
+config SYS_BOARD
+	default "espresso7420"
+	help
+	  Espresso7420 is a development/evaluation board for Exynos7420 SoC.
+	  It includes multiple onboard compoments (EMMC/Codec) and various
+	  interconnects (USB/HDMI).
+
+config SYS_VENDOR
+	default "samsung"
+
+config SYS_CONFIG_NAME
+	default "espresso7420"
+
+endif