pc: use get_uint() for "hpet-intcap" property

TYPE_HPET's property HPET_INTCAP is defined with DEFINE_PROP_UINT32().
Signed-off-by: NMarc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20170607163635.17635-33-marcandre.lureau@redhat.com>
Signed-off-by: NMarkus Armbruster <armbru@redhat.com>

hw/i386/pc.c

@@ -1558,7 +1558,7 @@ void pc_basic_device_init(ISABus *isa_bus, qemu_irq *gsi,
              * and earlier, use IRQ2 for compat. Otherwise, use IRQ16~23,
              * IRQ8 and IRQ2.
              */
-            uint8_t compat = object_property_get_int(OBJECT(hpet),
+            uint8_t compat = object_property_get_uint(OBJECT(hpet),
                     HPET_INTCAP, NULL);
             if (!compat) {
                 qdev_prop_set_uint32(hpet, HPET_INTCAP, hpet_irqs);