ide: add ide_proc_register_port()

* create_proc_ide_interfaces() tries to add /proc entries for every probed
  and initialized IDE port, replace it by ide_proc_register_port() which does
  it only for the given port (also rename destroy_proc_ide_interface() to
  ide_proc_unregister_port() for consistency)
  
* convert {create,destroy}_proc_ide_interface[s]() users to use new functions

* pmac driver depended on proc_ide_create() to add /proc port entries, fix it
  
* au1xxx-ide, swarm and cs5520 drivers depended indirectly on ide-generic
  driver (CONFIG_IDE_GENERIC=y) to add port /proc entries, fix them

* there is now no need to add /proc entries for IDE ports in proc_ide_create()
  so don't do it

* proc_ide_create() needs now to be called before drivers are probed - fix it,
  while at it make proc_ide_create() create /proc "ide" directory

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

diff --git a/drivers/ide/legacy/qd65xx.c b/drivers/ide/legacy/qd65xx.c
index 2fb8f50..d1414a7 100644
--- a/drivers/ide/legacy/qd65xx.c
+++ b/drivers/ide/legacy/qd65xx.c
@@ -427,7 +427,7 @@
 		qd_setup(hwif, base, config, QD6500_DEF_DATA, QD6500_DEF_DATA,
 			 &qd6500_tune_drive);
 
-		create_proc_ide_interfaces();
+		ide_proc_register_port(hwif);
 
 		return 1;
 	}
@@ -459,7 +459,7 @@
 				 &qd6580_tune_drive);
 			qd_write_reg(QD_DEF_CONTR,QD_CONTROL_PORT);
 
-			create_proc_ide_interfaces();
+			ide_proc_register_port(hwif);
 
 			return 1;
 		} else {
@@ -479,7 +479,8 @@
 				 &qd6580_tune_drive);
 			qd_write_reg(QD_DEF_CONTR,QD_CONTROL_PORT);
 
-			create_proc_ide_interfaces();
+			ide_proc_register_port(hwif);
+			ide_proc_register_port(mate);
 
 			return 0; /* no other qd65xx possible */
 		}