smb: client: remove \t from TP_printk statements

The generate '[FAILED TO PARSE]' strings in trace-cmd report output like this:

  rm-5298  [001]  6084.533748493: smb3_exit_err:        [FAILED TO PARSE] xid=972 func_name=cifs_rmdir rc=-39
  rm-5298  [001]  6084.533959234: smb3_enter:           [FAILED TO PARSE] xid=973 func_name=cifs_closedir
  rm-5298  [001]  6084.533967630: smb3_close_enter:     [FAILED TO PARSE] xid=973 fid=94489281833 tid=1 sesid=96758029877361
  rm-5298  [001]  6084.534004008: smb3_cmd_enter:       [FAILED TO PARSE] tid=1 sesid=96758029877361 cmd=6 mid=566
  rm-5298  [001]  6084.552248232: smb3_cmd_done:        [FAILED TO PARSE] tid=1 sesid=96758029877361 cmd=6 mid=566
  rm-5298  [001]  6084.552280542: smb3_close_done:      [FAILED TO PARSE] xid=973 fid=94489281833 tid=1 sesid=96758029877361
  rm-5298  [001]  6084.552316034: smb3_exit_done:       [FAILED TO PARSE] xid=973 func_name=cifs_closedir

Cc: stable@vger.kernel.org
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>