mb/siemens/mc_ehl: Add code to wait for legacy devices before PCI scan

Boards based on mc_ehl have, just like some mc_apl variants, legacy
devices on the PCI bus which take longer to boot. In order to ensure
that they will be enumerated correctly wait for them to come up before
PCI scan starts.

TEST=Checked that the new message is visible in the log.

Change-Id: If2f935b69ddaa9364566deacfada5e7d41fcdabd
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56631
Reviewed-by: Mario Scheithauer <mario.scheithauer@siemens.com>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions