pci_device.c: Don't guard `pci_dev_disable_bus_master()`
The `pci_dev_disable_bus_master()` function doesn't need to be guarded
with `CONFIG(PC80_SYSTEM)`, so move it out of the guard.
Change-Id: I813e0f72c3c624c73ab9ecbe7512359608ace927
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60599
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Felix Singer <felixsinger@posteo.net>