9p: Reorganization of 9p file system code

This patchset moves non-filesystem interfaces of v9fs from fs/9p to net/9p.
It moves the transport, packet marshalling and connection layers to net/9p
leaving only the VFS related files in fs/9p.  This work is being done in
preparation for in-kernel 9p servers as well as alternate 9p clients (other
than VFS).

Signed-off-by: Latchesar Ionkov <lucho@ionkov.net>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
diff --git a/net/Kconfig b/net/Kconfig
index f3de729..cdba08c 100644
--- a/net/Kconfig
+++ b/net/Kconfig
@@ -227,6 +227,7 @@
 endmenu
 
 source "net/rfkill/Kconfig"
+source "net/9p/Kconfig"
 
 endif   # if NET
 endmenu # Networking