opr: Include procmgmt_softsig.h for WINNT
On WINNT, procmgmt_softsig.h exists to implement our opr softsig
routines in terms of procmgmt routines. Any time we include
opr/softsig.h in cross-platform code, we currently must also include
afs/procmgmt_softsig.h so we can build on WINNT. We currently do not
do this in src/xstat, causing build failures on WINNT.
To avoid this, just make opr/softsig.h include procmgmt_softsig.h
itself, so all of the opr/softsig.h users don't have to remember to do
this. Link xstat_*_test against procmgmt, so linking will succeed for
those tools.
Change-Id: I2dc8226d438be25cdccbe96474220d7c81ae25b9
Reviewed-on: https://gerrit.openafs.org/13824
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Michael Meffie <mmeffie@sinenomine.net>
Reviewed-by: Benjamin Kaduk <kaduk@mit.edu>