staging: lustre: debugfs: improve osc/mdc "imports" connect data

Improve /sys/debug/fs/lustre/{osc,mdc}/*/import files to print
the struct obd_connect_data data fields as "connect_data:"
in addition to the "connect_flags:" field.

Signed-off-by: Emoly Liu <emoly.liu@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3386
Reviewed-on: http://review.whamcloud.com/6588


Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: James Simmons <uja.ornl@gmail.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>