imx: wandboard: fix splash logo drawing

After mxc_ipuv3 DM_VIDEO conversion showing splash image
doesn't work. Fix this. Also enable white on black console
configuration as it used to be with cfb_console driver.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
diff --git a/configs/wandboard_defconfig b/configs/wandboard_defconfig
index f07ec5f..421f806 100644
--- a/configs/wandboard_defconfig
+++ b/configs/wandboard_defconfig
@@ -37,6 +37,7 @@
 CONFIG_CMD_MMC=y
 CONFIG_CMD_SATA=y
 CONFIG_CMD_USB=y
+CONFIG_CMD_BMP=y
 CONFIG_CMD_CACHE=y
 CONFIG_CMD_EXT4_WRITE=y
 CONFIG_OF_CONTROL=y
@@ -66,4 +67,5 @@
 CONFIG_USB=y
 CONFIG_DM_USB=y
 CONFIG_DM_VIDEO=y
+CONFIG_SYS_WHITE_ON_BLACK=y
 CONFIG_VIDEO_IPUV3=y