ARM: ts4800: add basic board support

This commit adds basic support including:
MMC, Serial console, TS4800 watchdog

The config use CONFIG_SKIP_LOWLEVEL_INIT as U-boot is used as a second
stage bootloader.

Signed-off-by: Lucile Quirion <lucile.quirion@savoirfairelinux.com>
signed-off-by: Damien Riegel <damien.riegel@savoirfairelinux.com>
Cc: Stefano Babic <sbabic@denx.de>
diff --git a/board/technologic/ts4800/Kconfig b/board/technologic/ts4800/Kconfig
new file mode 100644
index 0000000..a28d5e4
--- /dev/null
+++ b/board/technologic/ts4800/Kconfig
@@ -0,0 +1,15 @@
+if TARGET_TS4800
+
+config SYS_BOARD
+	default "ts4800"
+
+config SYS_VENDOR
+	default "technologic"
+
+config SYS_SOC
+	default "mx5"
+
+config SYS_CONFIG_NAME
+	default "ts4800"
+
+endif