bootstage: Drop BOOTSTAGE_ID_FIT_KERNEL_INFO

This is a misnomer since we don't necessarily know that the image is a
FIT. Use the existing BOOTSTAGE_ID_CHECK_IMAGETYPE instead.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2 files changed