regulator: max77686: fix obtaining "maxim,ena" GPIO

This fixes 96392c3d, as devm_gpiod_get_from_of_node() does
not do translation "con-id" -> "con-id-gpios" that our bindings expects,
and therefore it was wrong to change connection ID to be simply
"maxim,ena" when moving to using devm_gpiod_get_from_of_node().

Fixes: 96392c3d ("regulator: max77686: Pass descriptor instead of GPIO number")
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20190910170050.GA55530@dtor-wsSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/regulator/max77686-regulator.c

@@ -257,7 +257,7 @@ static int max77686_of_parse_cb(struct device_node *np,
 	case MAX77686_BUCK9:
 	case MAX77686_LDO20 ... MAX77686_LDO22:
 		config->ena_gpiod = gpiod_get_from_of_node(np,
-				"maxim,ena",
+				"maxim,ena-gpios",
 				0,
 				GPIOD_OUT_HIGH | GPIOD_FLAGS_BIT_NONEXCLUSIVE,
 				"max77686-regulator");