soc/amd/*/include/pci_devs: fix copy-paste error in PCIE_ABC_C_DEVFN

Since it's an internal bus, it's PCIE_ABC_C_DEVFN and not
PCIE_GPP_C_DEVFN. This also makes it consistent with the rest of the
internal PCI buses.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Ica8b666161c3cd3b0b4a29f8a4b0aff473b4d833
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74656
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
diff --git a/src/soc/amd/mendocino/xhci.c b/src/soc/amd/mendocino/xhci.c
index 720cc76..e564991 100644
--- a/src/soc/amd/mendocino/xhci.c
+++ b/src/soc/amd/mendocino/xhci.c
@@ -49,7 +49,7 @@
 			*gpe = xhci_sci_sources[1].gpe;
 			return CB_SUCCESS;
 		}
-	} else if (dev->bus->dev->path.pci.devfn == PCIE_GPP_C_DEVFN) {
+	} else if (dev->bus->dev->path.pci.devfn == PCIE_ABC_C_DEVFN) {
 		if (dev->path.pci.devfn == XHCI2_DEVFN
 		    && dev->device == PCI_DID_AMD_FAM17H_MODELA0H_XHCI2) {
 			*gpe = xhci_sci_sources[2].gpe;