sb/intel/i82801gx: Include chip.h directly

Change-Id: I3d743e90444292be687999ab4f50aa89d514fbad
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33171
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/southbridge/intel/i82801gx/pcie.c b/src/southbridge/intel/i82801gx/pcie.c
index 3e5dbc3..0946a9a 100644
--- a/src/southbridge/intel/i82801gx/pcie.c
+++ b/src/southbridge/intel/i82801gx/pcie.c
@@ -19,6 +19,7 @@
 #include <device/pci.h>
 #include <device/pci_ops.h>
 #include <device/pci_ids.h>
+#include "chip.h"
 #include "i82801gx.h"
 
 /* Low Power variant has 6 root ports. */