pmdomain: imx: gpcv2: use proper helper for property detection

Starting with commit c141ecc3cecd7 ("of: Warn when of_property_read_bool()
is used on non-boolean properties"), probing the gpcv2 device on i.MX8M
SoCs leads to warnings when LOCKDEP is enabled.

Fix this by checking property presence with of_property_present as
intended.

Signed-off-by: Ahmad Fatoum <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Ulf Hansson <[e-mail]>

drivers/pmdomain/imx/gpcv2.c

···
 	}
 
 	if (IS_ENABLED(CONFIG_LOCKDEP) &&
-	    of_property_read_bool(domain->dev->of_node, "power-domains"))
+	    of_property_present(domain->dev->of_node, "power-domains"))
 		lockdep_set_subclass(&domain->genpd.mlock, 1);
 
 	ret = of_genpd_add_provider_simple(domain->dev->of_node,