makefile: Update reference to fi_pendpoint.3 man page

Man page was renamed to fi_passive_ep.3

Signed-off-by: Sean Hefty <sean.hefty@intel.com>
prov/verbs: Add check for cond type in CQ sread

The code assumes that the cond data is a threshold, even
if the CQ was not configured with a wait condition.
This results in the sread calls hanging.

Signed-off-by: Sean Hefty <sean.hefty@intel.com>