gstpad: fix gst_pad_can_link
gstpad: fix gst_pad_can_link

We were converting the GstPadLinkReturn to a gboolean, which is not what we want
to do.

Lachann/gstreamer,cablelabs/gstreamer,krichter722/gstreamer,justinjoy/gstreamer,krieger-od/gstreamer,krieger-od/gstreamer,surround-io/gstreamer,jpakkane/gstreamer,surround-io/gstreamer,lovebug356/gstreamer,jpxiong/gstreamer,collects/gstreamer,drothlis/gstreamer,cablelabs/gstreamer,cablelabs/gstreamer,ensonic/gstreamer,cfoch/gstreamer,cfoch/gstreamer,Distrotech/gstreamer,lubosz/gstreamer,krichter722/gstreamer,collects/gstreamer,lovebug356/gstreamer,shelsonjava/gstreamer,mparis/gstreamer,StreamUtils/gstreamer,StreamUtils/gstreamer,mrchapp/gstreamer,krieger-od/gstreamer,drothlis/gstreamer,drothlis/gstreamer,cfoch/gstreamer,mparis/gstreamer,mrchapp/gstreamer,Distrotech/gstreamer,centricular/gstreamer,centricular/gstreamer,ahmedammar/platform_external_gst_gstreamer,magcius/gstreamer,ylatuya/gstreamer,ylatuya/gstreamer,cablelabs/gstreamer,krichter722/gstreamer,mparis/gstreamer,collects/gstreamer,ensonic/gstreamer,cfoch/gstreamer,magcius/gstreamer,Lachann/gstreamer,surround-io/gstreamer,jpxiong/gstreamer,StreamUtils/gstreamer,ylatuya/gstreamer,magcius/gstreamer,lubosz/gstreamer,StreamUtils/gstreamer,Distrotech/gstreamer,justinjoy/gstreamer,shelsonjava/gstreamer,centricular/gstreamer,surround-io/gstreamer,StreamUtils/gstreamer,lubosz/gstreamer,krichter722/gstreamer,ensonic/gstreamer,lovebug356/gstreamer,jpakkane/gstreamer,ylatuya/gstreamer,centricular/gstreamer,lovebug356/gstreamer,centricular/gstreamer,Distrotech/gstreamer,mrchapp/gstreamer,drothlis/gstreamer,mrchapp/gstreamer,jpxiong/gstreamer,lovebug356/gstreamer,Lachann/gstreamer,jpakkane/gstreamer,jpxiong/gstreamer,ylatuya/gstreamer,collects/gstreamer,jpakkane/gstreamer,krieger-od/gstreamer,lubosz/gstreamer,ahmedammar/platform_external_gst_gstreamer,magcius/gstreamer,ahmedammar/platform_external_gst_gstreamer,drothlis/gstreamer,lubosz/gstreamer,jpxiong/gstreamer,ahmedammar/platform_external_gst_gstreamer,mparis/gstreamer,justinjoy/gstreamer,mparis/gstreamer,Lachann/gstreamer,jpakkane/gstreamer,surround-io/gstreamer,cfoch/gstreamer,krieger-od/gstreamer,justinjoy/gstreamer,collects/gstreamer,mrchapp/gstreamer,shelsonjava/gstreamer,Lachann/gstreamer,magcius/gstreamer,justinjoy/gstreamer,krichter722/gstreamer,shelsonjava/gstreamer,cablelabs/gstreamer,Distrotech/gstreamer,ensonic/gstreamer,ahmedammar/platform_external_gst_gstreamer,shelsonjava/gstreamer,ensonic/gstreamer