pci: Adjust video BIOS debugging to be SPL-friendly

A hex value is expected for the VGA mode. Add a 0x prefix, since the #
construct is not supported in SPL. We don't want to add it, due to
code-size constraints.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
1 file changed