Use correct integer size when calling recvfrom
Use correct integer size when calling recvfrom

recvfrom expects a pointer to socklen_t and a pointer to size_t was
used. In 64 bit systems this sizes are different and compiler prints a
warning.

Change-Id: I0687510b4c36ad9f721668ef71127aa0c72cfb3e
Signed-off-by: Otavio Pontes <a04f37e3ccb281cf4119e4b2fa8286ed94121d92@intel.com>
Signed-off-by: Thiago Macieira <0ed1648d92ca0373297a182b1dba1b974ad10d88@intel.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/10371

iotivity/iotivity-constrained,iotivity/iotivity-constrained,iotivity/iotivity-constrained,iotivity/iotivity-constrained