regulator: wm8994: Use GPIO parsed from DT when registering regulators

Ensure the regulators are registered with a GPIO parsed from the device
tree when available.

Signed-off-by: Sylwester Nawrocki <[e-mail]>
Signed-off-by: Mark Brown <[e-mail]>

drivers/regulator/wm8994-regulator.c

···
 	config.init_data = &ldo->init_data;
 	if (pdata)
 		config.ena_gpio = pdata->ldo[id].enable;
+	else if (wm8994->dev->of_node)
+		config.ena_gpio = wm8994->pdata.ldo[id].enable;
 
 	/* Use default constraints if none set up */
-	if (!pdata || !pdata->ldo[id].init_data) {
+	if (!pdata || !pdata->ldo[id].init_data || wm8994->dev->of_node) {
 		dev_dbg(wm8994->dev, "Using default init data, supply %s %s\n",
 			ldo->supply.dev_name, ldo->supply.supply);