sb,soc/intel: Use register_new_ioapic_gsi0()

Change-Id: I6b0e4021595fb160ae3bf798468f4505b460266f
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55314
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
diff --git a/src/southbridge/intel/i82801dx/lpc.c b/src/southbridge/intel/i82801dx/lpc.c
index 1de3766..1569c1c 100644
--- a/src/southbridge/intel/i82801dx/lpc.c
+++ b/src/southbridge/intel/i82801dx/lpc.c
@@ -50,7 +50,7 @@
 	pci_write_config32(dev, GEN_CNTL, reg32);
 	printk(BIOS_DEBUG, "IOAPIC Southbridge enabled %x\n", reg32);
 
-	setup_ioapic(VIO_APIC_VADDR, 0x02);
+	register_new_ioapic_gsi0(VIO_APIC_VADDR);
 
 	ioapic_set_boot_config(VIO_APIC_VADDR, true);
 }