pwg: fix more negotiation for 1.0
pwg: fix more negotiation for 1.0

jpxiong/gstreamer,Lachann/gstreamer,mparis/gstreamer,krichter722/gstreamer,centricular/gstreamer,jpxiong/gstreamer,Lachann/gstreamer,jpxiong/gstreamer,lovebug356/gstreamer,collects/gstreamer,lovebug356/gstreamer,cfoch/gstreamer,justinjoy/gstreamer,collects/gstreamer,centricular/gstreamer,centricular/gstreamer,StreamUtils/gstreamer,collects/gstreamer,lubosz/gstreamer,Lachann/gstreamer,justinjoy/gstreamer,krichter722/gstreamer,mparis/gstreamer,justinjoy/gstreamer,shelsonjava/gstreamer,StreamUtils/gstreamer,krieger-od/gstreamer,StreamUtils/gstreamer,krieger-od/gstreamer,cfoch/gstreamer,cablelabs/gstreamer,jpakkane/gstreamer,cfoch/gstreamer,cablelabs/gstreamer,shelsonjava/gstreamer,cfoch/gstreamer,ensonic/gstreamer,lubosz/gstreamer,jpxiong/gstreamer,lovebug356/gstreamer,jpakkane/gstreamer,Lachann/gstreamer,cablelabs/gstreamer,ensonic/gstreamer,lubosz/gstreamer,lovebug356/gstreamer,jpakkane/gstreamer,StreamUtils/gstreamer,krichter722/gstreamer,shelsonjava/gstreamer,StreamUtils/gstreamer,justinjoy/gstreamer,krieger-od/gstreamer,centricular/gstreamer,ensonic/gstreamer,mparis/gstreamer,cfoch/gstreamer,surround-io/gstreamer,collects/gstreamer,justinjoy/gstreamer,cablelabs/gstreamer,Lachann/gstreamer,surround-io/gstreamer,ensonic/gstreamer,shelsonjava/gstreamer,mparis/gstreamer,krieger-od/gstreamer,jpakkane/gstreamer,surround-io/gstreamer,surround-io/gstreamer,centricular/gstreamer,shelsonjava/gstreamer,collects/gstreamer,lubosz/gstreamer,cablelabs/gstreamer,ensonic/gstreamer,krichter722/gstreamer,krieger-od/gstreamer,lubosz/gstreamer,jpakkane/gstreamer,mparis/gstreamer,surround-io/gstreamer,krichter722/gstreamer,lovebug356/gstreamer,jpxiong/gstreamer