imx: ventana: fix splash logo drawing

After mxc_ipuv3 DM_VIDEO conversion showing splash image
doesn't work. Fix this by adding new requirements:
- splashimage env variable.
- CONFIG_SPLASH_SCREEN
- CONFIG_CMD_BMP

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
diff --git a/configs/gwventana_gw5904_defconfig b/configs/gwventana_gw5904_defconfig
index 543ac2f..5d9db22 100644
--- a/configs/gwventana_gw5904_defconfig
+++ b/configs/gwventana_gw5904_defconfig
@@ -61,6 +61,7 @@
 CONFIG_CMD_DHCP=y
 CONFIG_CMD_MII=y
 CONFIG_CMD_PING=y
+CONFIG_CMD_BMP=y
 CONFIG_CMD_CACHE=y
 CONFIG_CMD_TIME=y
 CONFIG_CMD_EXT2=y
@@ -149,6 +150,8 @@
 CONFIG_SYS_WHITE_ON_BLACK=y
 # CONFIG_PANEL is not set
 CONFIG_VIDEO_IPUV3=y
+CONFIG_SPLASH_SCREEN=y
+CONFIG_SPLASH_SCREEN_ALIGN=y
 CONFIG_WATCHDOG_TIMEOUT_MSECS=60000
 CONFIG_IMX_WATCHDOG=y
 CONFIG_FDT_FIXUP_PARTITIONS=y