soc/intel/skylake: Use PCH_DEV_* instead of PCH_DEVFN_*

This change allows the same functions to be used across ramstage and
smm without having to add checks for what stage is using it.

BUG=b:67874513

Change-Id: I3b10c9e8975e8622d8cb0f66d90d39a914ba7e1c
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/22084
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
1 file changed