fs/Kconfig: move hpfs out

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>

fs/Kconfig

@@ -217,22 +217,7 @@ source "fs/squashfs/Kconfig"
 source "fs/freevxfs/Kconfig"
 source "fs/minix/Kconfig"
 source "fs/omfs/Kconfig"
-
-config HPFS_FS
-	tristate "OS/2 HPFS file system support"
-	depends on BLOCK
-	help
-	  OS/2 is IBM's operating system for PC's, the same as Warp, and HPFS
-	  is the file system used for organizing files on OS/2 hard disk
-	  partitions. Say Y if you want to be able to read files from and
-	  write files to an OS/2 HPFS partition on your hard drive. OS/2
-	  floppies however are in regular MSDOS format, so you don't need this
-	  option in order to be able to read them. Read
-	  <file:Documentation/filesystems/hpfs.txt>.
-
-	  To compile this file system support as a module, choose M here: the
-	  module will be called hpfs.  If unsure, say N.
-
+source "fs/hpfs/Kconfig"
 
 config QNX4FS_FS
 	tristate "QNX4 file system support (read only)"