soc/intel/xeon_sp: Use default soc_get_ioapic_info

intel/common/block/acpi provides default soc_get_ioapic_info for
single IOAPIC model. Use the default soc_get_ioapic_info when
XEON_SP_HAVE_IIO_IOAPIC is not set. This model fits for SPR and
later.

TEST=Build and boot on intel/archercity CRB

Change-Id: I1ecfba49cd9b4dfbb3f11d58d04d07ea1752a131
Signed-off-by: Shuo Liu <shuo.liu@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81628
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Varshit Pandya <pandyavarshit@gmail.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>

src/soc/intel/xeon_sp/acpi.c

@@ -90,6 +90,7 @@ const acpi_cstate_t *soc_get_cstate_map(size_t *entries)
 	return map;
 }
 
+#if CONFIG(XEON_SP_HAVE_IIO_IOAPIC)
 static uintptr_t xeonsp_ioapic_bases[CONFIG(XEON_SP_HAVE_IIO_IOAPIC) * 8 + 1];
 
 size_t soc_get_ioapic_info(const uintptr_t *ioapic_bases[])
@@ -126,6 +127,7 @@ size_t soc_get_ioapic_info(const uintptr_t *ioapic_bases[])
 
 	return index;
 }
+#endif
 
 void iio_domain_set_acpi_name(struct device *dev, const char *prefix)
 {