mgr/smb: add fruit:nfs_aces=no for macOS compatibility mode

mgr/smb: add fruit:nfs_aces=no for macOS compatibility mode

When macOS client compatibility is enabled, add the global Samba
configuration option 'fruit:nfs_aces = no' to disable NFS ACE
handling in the fruit VFS module. This improves compatibility
with macOS SMB clients by preventing conflicts between NFS-style
ACLs and macOS extended attributes.

The configuration is automatically applied when:
- Creating a new cluster with --client-compat=macos
- Updating an existing cluster to macOS mode

Signed-off-by: Shwetha K Acharya <Shwetha.K.Acharya@ibm.com>