OPP: Fix parsing of multiple phandles in "operating-points-v2" property

We currently return error if more than one phandle is present in the
"operating-points-v2" property, which is incorrect. We only want to
check the count of phandles here and set index to 0 if only one phandle
is present.

Fix it.

Fixes: 5ed4cecd75e9 ("OPP: Pass OPP table to _of_add_opp_table_v{1|2}()")
Signed-off-by: Viresh Kumar <[e-mail]>

drivers/opp/of.c

···
 		 */
 		count = of_count_phandle_with_args(dev->of_node,
 						   "operating-points-v2", NULL);
-		if (count != 1)
-			return -ENODEV;
-
-		index = 0;
+		if (count == 1)
+			index = 0;
 	}
 
 	opp_table = dev_pm_opp_get_opp_table_indexed(dev, index);