ARM: pxa: Use of_property_read_bool() for boolean properties

It is preferred to use typed property access functions (i.e.
of_property_read_<type> functions) rather than low-level
of_get_property/of_find_property functions for reading properties.
Convert reading boolean properties to to of_property_read_bool().
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm/mach-pxa/irq.c

@@ -257,8 +257,7 @@ void __init pxa_dt_irq_init(int (*fn)(struct irq_data *, unsigned int))
 	}
 	pxa_irq_base = io_p2v(res.start);
 
-	if (of_find_property(node, "marvell,intc-priority", NULL))
-		cpu_has_ipr = 1;
+	cpu_has_ipr = of_property_read_bool(node, "marvell,intc-priority");
 
 	ret = irq_alloc_descs(-1, 0, pxa_internal_irq_nr, 0);
 	if (ret < 0) {