arch/x86/ioapic: use uintptr_t for IOAPIC base address

Use uintptr_t for the IOAPIC base parameter of the various IOAPIC-
related functions to avoid needing type casts in the callers. This also
allows dropping the VIO_APIC_VADDR define and consistently use the
IO_APIC_ADDR define instead.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I912943e923ff092708e90138caa5e1daf269a69f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80358
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
Reviewed-by: Jérémy Compostella <jeremy.compostella@intel.com>
diff --git a/src/southbridge/intel/ibexpeak/lpc.c b/src/southbridge/intel/ibexpeak/lpc.c
index 7d85883..93dc387 100644
--- a/src/southbridge/intel/ibexpeak/lpc.c
+++ b/src/southbridge/intel/ibexpeak/lpc.c
@@ -33,9 +33,9 @@
 static void pch_enable_ioapic(struct device *dev)
 {
 	/* affirm full set of redirection table entries ("write once") */
-	ioapic_lock_max_vectors(VIO_APIC_VADDR);
+	ioapic_lock_max_vectors(IO_APIC_ADDR);
 
-	register_new_ioapic_gsi0(VIO_APIC_VADDR);
+	register_new_ioapic_gsi0(IO_APIC_ADDR);
 }
 
 static void pch_enable_serial_irqs(struct device *dev)