The MPC.HPCE bit of the ExpressCard root port is not set in vendor
firmware, so autoport didn't generate the right pcie_hotplug_map to
support ExpressCard hotplug.
Also add comments for each PCIe root port.
Change-Id: Ic53e36a7192b9bfa8ff9fca57f4556e972e2611b
Signed-off-by: Iru Cai <mytbk920423@gmail.com>
Reviewed-on: https://review.coreboot.org/21310
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
e9edd27099