[I0T-1159] Resolved twice response issue

[I0T-1159] Resolved twice response issue

Issue : The server is responding with both 4.00(ACK) & 5.00(CON) error message
Solution : If SendSRMResponse succeed, return OC_EH_OK to OCStack

Patch1: Init
Patch2: Apply review comment
Patch3: Change file mode

Change-Id: I70e2b3e0a703cd137a9244097e128b3ecbed5c77
Signed-off-by: js126.lee <js126.lee@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/9251
Reviewed-by: Chul Lee <chuls.lee@samsung.com>
Reviewed-by: Randeep Singh <randeep.s@samsung.com>
Tested-by: Randeep Singh <randeep.s@samsung.com>
(cherry picked from commit 8e2f191ccbb06920d2a0aea2d10629f6e106075e)
Signed-off-by: Randeep Singh <randeep.s@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/9315
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: dongik Lee <dongik.lee@samsung.com>