caps: Set sysmem features if explicitely requested
caps: Set sysmem features if explicitely requested

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