IOT-2539 Remove missing-field-initializers warning

IOT-2539 Remove missing-field-initializers warning

OicSecKey_t contains a 3rd field.  Even though the field
is a work around for a that will be replaced soon. Till
it is replaced this will be added to preven this warning

Bug: https://jira.iotivity.org/browse/IOT-2539
Change-Id: Ib826de1a159d33c2ac2032c546090fb1905842f0
Signed-off-by: George Nash <george.nash@intel.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/21759
Tested-by: jenkins-iotivity <jenkins@iotivity.org>
Reviewed-by: Mats Wichmann <mats@linux.com>
Reviewed-by: Rick Bell <richard.s.bell@intel.com>
Reviewed-by: Randeep Singh <randeep.s@samsung.com>
(cherry picked from commit c0ec621cd9d58e9b2c68ba6be1a2bc75dc74e1d7)