usb-storage: make karma a separate module

This patch (as1216) converts usb-storage's karma subdriver into a
separate module.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/usb/storage/Kconfig

@@ -144,7 +144,7 @@ config USB_STORAGE_ONETOUCH
 	  cuts)
 
 config USB_STORAGE_KARMA
-	bool "Support for Rio Karma music player"
+	tristate "Support for Rio Karma music player"
 	depends on USB_STORAGE
 	help
 	  Say Y here to include additional code to support the Rio Karma
@@ -155,6 +155,8 @@ config USB_STORAGE_KARMA
 	  on the resulting scsi device node returns the Karma to normal
 	  operation.
 
+	  If this driver is compiled as a module, it will be named ums-karma.
+
 config USB_STORAGE_CYPRESS_ATACB
 	tristate "SAT emulation on Cypress USB/ATA Bridge with ATACB"
 	depends on USB_STORAGE