Convert CONFIG_VIDEO_CT69000 to Kconfig

This converts the following to Kconfig:
   CONFIG_VIDEO_CT69000

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/MIP405_defconfig b/configs/MIP405_defconfig
index 9c77df8..4eb1856 100644
--- a/configs/MIP405_defconfig
+++ b/configs/MIP405_defconfig
@@ -19,3 +19,4 @@
 CONFIG_SYS_NS16550=y
 CONFIG_USB=y
 CONFIG_USB_STORAGE=y
+CONFIG_VIDEO_CT69000=y