ata: ahci_platform: enable to get and control reset

Unlike SoC-specific driver, generic ahci_platform driver doesn't
have any chances to control resets.

This adds AHCI_PLATFORM_GET_RESETS to ahci_platform_get_resources()
on the generic driver to enable reset control support.

Suggested-by: Hans de Goede <[e-mail]>
Cc: Thierry Reding <[e-mail]>
Signed-off-by: Kunihiko Hayashi <[e-mail]>
Reviewed-by: Hans de Goede <[e-mail]>
Signed-off-by: Tejun Heo <[e-mail]>

drivers/ata/ahci_platform.c

···
 	struct ahci_host_priv *hpriv;
 	int rc;
 
-	hpriv = ahci_platform_get_resources(pdev, 0);
+	hpriv = ahci_platform_get_resources(pdev,
+					    AHCI_PLATFORM_GET_RESETS);
 	if (IS_ERR(hpriv))
 		return PTR_ERR(hpriv);