fs/Kconfig: move bfs out

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
diff --git a/fs/Kconfig b/fs/Kconfig
index cfddc0a..9acf3a2 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -207,28 +207,7 @@
 source "fs/hfs/Kconfig"
 source "fs/hfsplus/Kconfig"
 source "fs/befs/Kconfig"
-
-config BFS_FS
-	tristate "BFS file system support (EXPERIMENTAL)"
-	depends on BLOCK && EXPERIMENTAL
-	help
-	  Boot File System (BFS) is a file system used under SCO UnixWare to
-	  allow the bootloader access to the kernel image and other important
-	  files during the boot process.  It is usually mounted under /stand
-	  and corresponds to the slice marked as "STAND" in the UnixWare
-	  partition.  You should say Y if you want to read or write the files
-	  on your /stand slice from within Linux.  You then also need to say Y
-	  to "UnixWare slices support", below.  More information about the BFS
-	  file system is contained in the file
-	  <file:Documentation/filesystems/bfs.txt>.
-
-	  If you don't know what this is about, say N.
-
-	  To compile this as a module, choose M here: the module will be called
-	  bfs.  Note that the file system of your root partition (the one
-	  containing the directory /) cannot be compiled as a module.
-
-
+source "fs/bfs/Kconfig"
 
 config EFS_FS
 	tristate "EFS file system support (read only) (EXPERIMENTAL)"
diff --git a/fs/bfs/Kconfig b/fs/bfs/Kconfig
new file mode 100644
index 0000000..c2336c6
--- /dev/null
+++ b/fs/bfs/Kconfig
@@ -0,0 +1,19 @@
+config BFS_FS
+	tristate "BFS file system support (EXPERIMENTAL)"
+	depends on BLOCK && EXPERIMENTAL
+	help
+	  Boot File System (BFS) is a file system used under SCO UnixWare to
+	  allow the bootloader access to the kernel image and other important
+	  files during the boot process.  It is usually mounted under /stand
+	  and corresponds to the slice marked as "STAND" in the UnixWare
+	  partition.  You should say Y if you want to read or write the files
+	  on your /stand slice from within Linux.  You then also need to say Y
+	  to "UnixWare slices support", below.  More information about the BFS
+	  file system is contained in the file
+	  <file:Documentation/filesystems/bfs.txt>.
+
+	  If you don't know what this is about, say N.
+
+	  To compile this as a module, choose M here: the module will be called
+	  bfs.  Note that the file system of your root partition (the one
+	  containing the directory /) cannot be compiled as a module.