ide: use ide_remove_port_from_hwgroup in init_irq()

There should be no functionality changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 1a3c894..ab9ca2b 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -461,7 +461,7 @@
 	hwif->hwif_data			= tmp_hwif->hwif_data;
 }
 
-static void ide_remove_port_from_hwgroup(ide_hwif_t *hwif)
+void ide_remove_port_from_hwgroup(ide_hwif_t *hwif)
 {
 	ide_hwgroup_t *hwgroup = hwif->hwgroup;