firewire: put old and new stack into same Kconfig submenu

Screenshot from "make menuconfig":
...
  ?????????????????????? IEEE 1394 (FireWire) support ???????????????????????
  ?  Arrow keys navigate the menu.  <Enter> selects submenus --->.          ?
...
  ? ??????????????????????????????????????????????????????????????????????? ?
  ? ?    <M> IEEE 1394 (FireWire) support (JUJU alternative stack, experim? ?
  ? ?    <M>   Support for OHCI firewire host controllers                 ? ?
  ? ?    <M>   Support for storage devices (SBP-2 protocol driver)        ? ?
  ? ?    <M> IEEE 1394 (FireWire) support                                 ? ?
  ? ?    ---   Subsystem Options                                          ? ?
  ? ?    [ ]   Excessive debugging output                                 ? ?
...
  ?                    <Select>    < Exit >    < Help >                     ?
  ???????????????????????????????????????????????????????????????????????????
Signed-off-by: NStefan Richter <stefanr@s5r6.in-berlin.de>

drivers/Kconfig

@@ -30,8 +30,6 @@ source "drivers/md/Kconfig"
 
 source "drivers/message/fusion/Kconfig"
 
-source "drivers/firewire/Kconfig"
-
 source "drivers/ieee1394/Kconfig"
 
 source "drivers/message/i2o/Kconfig"

drivers/firewire/Kconfig

 # -*- shell-script -*-
 
-menu "IEEE 1394 (FireWire) support (JUJU alternative stack)"
-
-comment "This is an EXPERIMENTAL set of alternative FireWire drivers."
+comment "An alternative FireWire stack is available with EXPERIMENTAL=y"
 	depends on EXPERIMENTAL=n
 
 config FW
@@ -47,4 +45,3 @@ config FW_SBP2
 	  You should also enable support for disks, CD-ROMs, etc. in the SCSI
 	  configuration section.
 
-endmenu

drivers/ieee1394/Kconfig

@@ -2,6 +2,8 @@
 
 menu "IEEE 1394 (FireWire) support"
 
+source "drivers/firewire/Kconfig"
+
 config IEEE1394
 	tristate "IEEE 1394 (FireWire) support"
 	depends on PCI || BROKEN