siemens/mc_apl3: Disable PCI clock outputs on XIO bridges
On this mainboard there are legacy PCI device, which are connected to
different PCIe root ports via PCIe-2-PCI bridges. This patch disables
the unused PCI clock outputs on the XIO2001 PCI Express to PCI Bridges.
Change-Id: I2212c1080b72a656b5c8e68b040108a7adbec608
Signed-off-by: Mario Scheithauer <mario.scheithauer@siemens.com>
Reviewed-on: https://review.coreboot.org/29549
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>