soc/intel/*: Update data types for variables holding PCH_DEVFN_* macros

The usage of `pci_devfn_t` here is misleading, as these intentionally
store the `PCH_DEVFN_*` macros so they can be used across `smm` and
`ramstage` without requiring the device model. Update to `unsigned int`
instead, as `pci_devfn_t` implies the data is an MMCONF-compatible PCI
devfn offset.

Change-Id: Ic8880de984e6eceda4cbe141e118f3a5fdd672a2
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52808
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/soc/intel/tigerlake/elog.c

@@ -12,7 +12,7 @@
 #include <types.h>
 
 struct pme_map {
-	pci_devfn_t devfn;
+	unsigned int devfn;
 	unsigned int wake_source;
 };