debian: ceph-cfuse: move ceph from Recommends to Suggests

on a standalone fuse client ceph serverside is not needed. if it's
"Recommended" the default behaviour is to install it too. Move it to "Suggests" that it's not installed by default if one installs just ceph-fuse.

from debian policy:
Suggests:
This is used to declare that one package may be more useful with one or more others. Using this field tells the packaging system and the user that the listed packages are related to this one and can perhaps enhance its usefulness, but that installing this one without them is perfectly reasonable.

- Thomas

index 622242d..a1db488 100644
@@ -30,7 +30,7 @@ Description: debugging symbols for ceph
 Package: ceph-fuse
 Architecture: any
 Depends: ${shlibs:Depends}, ${misc:Depends}, libfuse2
-Recommends: ceph
+Suggests: ceph
 Description: FUSE-based client for the Ceph distributed file system
  Ceph is a distributed network file system designed to provide
  excellent performance, reliability, and scalability.  This is a