intel/{gm45,x4x},i82801{ix|jx}: Move enable_smbus() call

Change-Id: Idc7631abb550b31af722ccf3b69afdc01fdb616e
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38268
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/southbridge/intel/i82801ix/early_init.c b/src/southbridge/intel/i82801ix/early_init.c
index 92db7d8..4ce4fbe 100644
--- a/src/southbridge/intel/i82801ix/early_init.c
+++ b/src/southbridge/intel/i82801ix/early_init.c
@@ -23,6 +23,9 @@
 {
 	const pci_devfn_t d31f0 = PCI_DEV(0, 0x1f, 0);
 
+	if (ENV_ROMSTAGE)
+		enable_smbus();
+
 	/* Set up RCBA. */
 	pci_write_config32(d31f0, RCBA, (uintptr_t)DEFAULT_RCBA | 1);