qxl_surface: logging: add function name to ErrorF
qxl_surface: logging: add function name to ErrorF

dezelin/xf86-video-qxl,dezelin/xf86-video-qxl,facboy/xserver-xorg-video-qxl,facboy/xserver-xorg-video-qxl,facboy/xserver-xorg-video-qxl,fgouget/xf86-video-qxl,dezelin/xf86-video-qxl,fgouget/xf86-video-qxl,fgouget/xf86-video-qxl,facboy/xserver-xorg-video-qxl,fgouget/xf86-video-qxl