Also add the HP EliteBook document from wiki.
Change-Id: I189db9c279705af53d82af66d0c2e8afb6f84d73
Signed-off-by: Iru Cai <mytbk920423@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/30950
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Iru Cai