openwebrtc-gst-plugins-static.recipe: Fix checking for openssl
openwebrtc-gst-plugins-static.recipe: Fix checking for openssl

Complements 5eae63059643751862534a7a1053129245c001e2.

Interim solution for https://github.com/nirbheek/cerbero/issues/21
Upstream bug: https://github.com/EricssonResearch/openwebrtc-gst-plugins/pull/32

multipath-rtp/cerbero,AlertMe/cerbero,multipath-rtp/cerbero,multipath-rtp/cerbero,EricssonResearch/cerbero,ramaxlo/cerbero,ikonst/cerbero,ikonst/cerbero,sdroege/cerbero,multipath-rtp/cerbero,superdump/cerbero,superdump/cerbero,EricssonResearch/cerbero,AlertMe/cerbero,ikonst/cerbero,superdump/cerbero,ramaxlo/cerbero,shoreflyer/cerbero,shoreflyer/cerbero,EricssonResearch/cerbero,sdroege/cerbero,sdroege/cerbero,ikonst/cerbero,EricssonResearch/cerbero,sdroege/cerbero,EricssonResearch/cerbero,ramaxlo/cerbero,shoreflyer/cerbero,shoreflyer/cerbero,superdump/cerbero,AlertMe/cerbero,shoreflyer/cerbero,sdroege/cerbero,ramaxlo/cerbero,multipath-rtp/cerbero,ikonst/cerbero,ramaxlo/cerbero,AlertMe/cerbero,AlertMe/cerbero