drivers/rtc/rtc-tps6586x.c: device wakeup flags correction

Use device_init_wakeup() instead of device_set_wakeup_capable() and move
it before rtc dev registering. This fixes alarmtimer not registered
when tps6586x rtc is the only wakeup compatible rtc in the system.

Signed-off-by: Dmitry Osipenko <[e-mail]>
Cc: Laxman Dewangan <[e-mail]>
Cc: Jingoo Han <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

drivers/rtc/rtc-tps6586x.c

···
 		return ret;
 	}
 
+	device_init_wakeup(&pdev->dev, 1);
+
 	platform_set_drvdata(pdev, rtc);
 	rtc->rtc = devm_rtc_device_register(&pdev->dev, dev_name(&pdev->dev),
 				       &tps6586x_rtc_ops, THIS_MODULE);
···
 		goto fail_rtc_register;
 	}
 	disable_irq(rtc->irq);
-	device_set_wakeup_capable(&pdev->dev, 1);
 	return 0;
 
 fail_rtc_register: