pwg: fix some negotiation to 1.0
pwg: fix some negotiation to 1.0

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