libglusterfs: include compat-errno.h in common-utils to avoid smoke failures

Change-Id: I14ae91bf20a0eb7a79b3d6028844f55642eb5426
BUG: 1151303
Signed-off-by: Atin Mukherjee <amukherj@redhat.com>
Reviewed-on: http://review.gluster.org/8955
Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
Reviewed-by: Niels de Vos <ndevos@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>