drivers: espi: npcx: update OOB maximum payload size

This commit updates the OOB payload size. The maximum payload size in
the OOB chapter represents the protocol payload embedded whithin the
packet. The total size should also include the header length, so the
header length needs to be added when checking the overall size.

Signed-off-by: Tom Chang <CHChang19@nuvoton.com>
1 file changed