soc: imx: gpc: fix domain_index sanity check issue

ARRAY_SIZE(imx_gpc_domains) represents all power domains supported
by different SoCs. Driver should use SoC specific of_id_data->num_domains
instead to do power domain index sanity check.
e.g. MX6Q supports two power domains while MX6SL supports three.

Fixes: 721cabf ("soc: imx: move PGC handling to a new GPC driver")
Acked-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

drivers/soc/imx/gpc.c

@@ -413,7 +413,7 @@ static int imx_gpc_probe(struct platform_device *pdev)
 				of_node_put(np);
 				return ret;
 			}
-			if (domain_index >= ARRAY_SIZE(imx_gpc_domains))
+			if (domain_index >= of_id_data->num_domains)
 				continue;
 
 			domain = &imx_gpc_domains[domain_index];