staging: lustre: fid: Change positional struct initializers to C99

This patch makes no functional changes.  Struct initializers in the
fid directory that use C89 or GCC-only syntax are updated to C99
syntax.

The C99 syntax prevents incorrect initialization if values are
accidently placed in the wrong position, allows changes in the struct
definition, and clears any members that are not given an explicit
value.

The following struct initializers have been updated:

lustre/fid/fid_lib.c:
        const struct lu_seq_range LUSTRE_SEQ_SPACE_RANGE
        const struct lu_seq_range LUSTRE_SEQ_ZERO_RANGE
lustre/fid/lproc_fid.c:
        struct lprocfs_vars seq_client_debugfs_list

Signed-off-by: Steve Guminski <stephenx.guminski@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6210
Reviewed-on: https://review.whamcloud.com/23789


Reviewed-by: Nathaniel Clark <nathaniel.l.clark@intel.com>
Reviewed-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>