gm45/i82801ix: Use common code for early SMBus

The early SMBus code for this southbridge checked if the PCI device ID
is valid. However, we can't easily do that in common code, and we should
not attempt to do so either: if a SMBus device behaves differently, then
it should not be using the common code anyway.

Change-Id: I5c21e091e437d23a173ddcf35d4f1efada6194cb
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42004
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/southbridge/intel/i82801ix/Kconfig b/src/southbridge/intel/i82801ix/Kconfig
index bd2cd0f4..e1405cf 100644
--- a/src/southbridge/intel/i82801ix/Kconfig
+++ b/src/southbridge/intel/i82801ix/Kconfig
@@ -14,6 +14,7 @@
 	select SOUTHBRIDGE_INTEL_COMMON_RESET
 	select SOUTHBRIDGE_INTEL_COMMON_RTC
 	select SOUTHBRIDGE_INTEL_COMMON_SMBUS
+	select SOUTHBRIDGE_INTEL_COMMON_EARLY_SMBUS
 	select SOUTHBRIDGE_INTEL_COMMON_SMM
 	select SOUTHBRIDGE_INTEL_COMMON_SPI_ICH9 if !BOARD_EMULATION_QEMU_X86_Q35
 	select SOUTHBRIDGE_INTEL_COMMON_USB_DEBUG