LU-10392 fid: improve seq allocation error messages

LU-10392 fid: improve seq allocation error messages

When MDTs are waiting for MDT0000 to start the master sequence
server and be granted a meta sequence for the first time, in case
of "-EINPROGRESS", the limited console messages would be clearer
and better than many error messages.

Change-Id: I64e80508cf9fb837a328b4f8228f29bfb764845d
Signed-off-by: Emoly Liu <emoly.liu@intel.com>
Reviewed-on: https://review.whamcloud.com/30623
Tested-by: Jenkins
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Yang Sheng <yang.sheng@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>