am335x, guardian: Add support for the bosch guardian board

Add support for the Bosch Guardian board.

CPU  : AM335X-GP rev 2.1
Model: Bosch AM335x Guardian
I2C:   ready
DRAM:  256 MiB
NAND:  512 MiB
MMC:   OMAP SD/MMC: 0

Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Signed-off-by: Martyn Welch <martyn.welch@collabora.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Felix Brack <fb@ltec.ch>
diff --git a/board/bosch/guardian/Kconfig b/board/bosch/guardian/Kconfig
new file mode 100644
index 0000000..1417da6
--- /dev/null
+++ b/board/bosch/guardian/Kconfig
@@ -0,0 +1,15 @@
+if TARGET_AM335X_GUARDIAN
+
+config SYS_BOARD
+	default "guardian"
+
+config SYS_VENDOR
+	default "bosch"
+
+config SYS_SOC
+	default "am33xx"
+
+config SYS_CONFIG_NAME
+	default "am335x_guardian"
+
+endif