osd: fix pg_interval_t int -> int32_t

Still 4 bytes on i386 and x86_64.

Signed-off-by: Sage Weil <sage@inktank.com>
osd: fix pg_shard_t int -> int32_t

Still 4 bytes on i386 and x86_64.

Signed-off-by: Sage Weil <sage@inktank.com>
osd: fix pg_stat_t int -> int32_t

Still 4 bytes on i386 and x86_64.

Signed-off-by: Sage Weil <sage@inktank.com>
Merge pull request #2034 from ceph/wip-osd-ints

osd: fix int -> int32_t in misc encoded structures

Reviewed-by: Samuel Just <sam.just@inktank.com>