configs: migrate CONFIG_VIDEO_BMP_RLE8 to defconfigs

Done with:
./tools/moveconfig.py VIDEO_BMP_RLE8

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 6363807..8df69f1 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -947,4 +947,11 @@
 	  images, gzipped BMP images can be displayed via the
 	  splashscreen support or the bmp command.
 
+config VIDEO_BMP_RLE8
+	bool "Run length encoded BMP image (RLE8) support"
+	depends on DM_VIDEO || CFB_CONSOLE
+	help
+	  If this option is set, the 8-bit RLE compressed BMP images
+	  is supported.
+
 endmenu