rockchip: add evb_rk3229 board

evb_rk3229 is a RK3229 based board, with:
- 8GB eMMC;
- 1GB DDR SDRAM;
- 2 USB2.0 HOST port;
- 1 MAC port;
- 1 HDMI port;
- IR;
- WiFi;

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
diff --git a/board/rockchip/evb_rk3229/Kconfig b/board/rockchip/evb_rk3229/Kconfig
new file mode 100644
index 0000000..361dcb1
--- /dev/null
+++ b/board/rockchip/evb_rk3229/Kconfig
@@ -0,0 +1,15 @@
+if TARGET_EVB_RK3229
+
+config SYS_BOARD
+	default "evb_rk3229"
+
+config SYS_VENDOR
+	default "rockchip"
+
+config SYS_CONFIG_NAME
+	default "evb_rk3229"
+
+config BOARD_SPECIFIC_OPTIONS # dummy
+	def_bool y
+
+endif