video: Show the U-Boot logo by default

Enable this for boards with a display, unless they are using the SPLASH
feature.

This shows a U-Boot logo on boards with a display, which seems like a
useful thing.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/tbs2910_defconfig b/configs/tbs2910_defconfig
index c623a54..e1278f2 100644
--- a/configs/tbs2910_defconfig
+++ b/configs/tbs2910_defconfig
@@ -94,6 +94,7 @@
 CONFIG_CI_UDC=y
 CONFIG_USB_GADGET_DOWNLOAD=y
 CONFIG_DM_VIDEO=y
+# CONFIG_VIDEO_LOGO is not set
 # CONFIG_BACKLIGHT is not set
 # CONFIG_CMD_VIDCONSOLE is not set
 # CONFIG_VIDEO_BPP8 is not set