valgrind: Add suppresion for gst_static_pad_template_get
valgrind: Add suppresion for gst_static_pad_template_get

Is has a memory leak at least on gstreamer 1.3

Change-Id: I8f9798baabf7e7759ddcf1cbacaf72fa87d89ca5

TribeMedia/kms-core,shelsonjava/kms-core,TribeMedia/kms-core,ESTOS/kms-core,KurentoLegacy/gst-kurento-plugins,KurentoLegacy/gst-kurento-plugins,ESTOS/kms-core,KurentoLegacy/gst-kurento-plugins,shelsonjava/kms-core,Kurento/kms-core,ESTOS/kms-core,shelsonjava/kms-core,KurentoLegacy/gst-kurento-plugins,shelsonjava/kms-core,TribeMedia/kms-core,Kurento/kms-core,TribeMedia/kms-core,ESTOS/kms-core,Kurento/kms-core,Kurento/kms-core