cifs: cleanup: Rename and remove config flags

Remove config flag CIFS_EXPERIMENTAL.
Do export operations under new config flag CIFS_NFSD_EXPORT

Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
diff --git a/fs/cifs/Kconfig b/fs/cifs/Kconfig
index 2a492aa..7c584be 100644
--- a/fs/cifs/Kconfig
+++ b/fs/cifs/Kconfig
@@ -172,16 +172,8 @@
 
 	  Unless you are a developer or tester, say N.
 
-config CIFS_EXPERIMENTAL
-	  bool "CIFS Experimental Features (EXPERIMENTAL)"
+config CIFS_NFSD_EXPORT
+	  bool "Allow nfsd to export CIFS file system (EXPERIMENTAL)"
 	  depends on CIFS && EXPERIMENTAL
 	  help
-	    Enables cifs features under testing. These features are
-	    experimental and currently include DFS support and directory
-	    change notification ie fcntl(F_DNOTIFY), as well as the upcall
-	    mechanism which will be used for Kerberos session negotiation
-	    and uid remapping.  Some of these features also may depend on
-	    setting a value of 1 to the pseudo-file /proc/fs/cifs/Experimental
-	    (which is disabled by default). See the file fs/cifs/README
-	    for more details.  If unsure, say N.
-
+	   Allows NFS server to export a CIFS mounted share (nfsd over cifs)