soc/intel/denverton_ns: Update UART legacy mode to keep FSP traces

The FSP can only output its traces when the HSUART PCI device is

- Move the hiding to after last FSP call.
- Adapt coreboot PCI enumeration to keep the legacy configuration.

With UART configured as legacy Linux will not re-enumerate it but detects
it as legacy (ttyS0 instead of ttyS4).

Change-Id: Id8801e178ffd8eeee78ece07da7bd6b8dbd88538
Signed-off-by: Julien Viard de Galbert <>
Tested-by: build bot (Jenkins) <>
Reviewed-by: Paul Menzel <>
Reviewed-by: Nico Huber <>
2 files changed