multimedia/gstreamer: add missing USES=gstreamer

Add missing USES=gstreamer to options not caught in gstreamer.mk conversion in [1]

Reported by:	fluffy

[1]  ca3f925d6e

multimedia/gnome-twitch/Makefile

@@ -47,6 +47,10 @@ GSTREAMER_OPENGL_DESC=	GStreamer decoding + OpenGL drawing backend
 GSTREAMER_CLUTTER_DESC=	GStreamer decoding + Clutter drawing backend
 MPV_OPENGL_DESC=	MPV decoding + OpenGL drawing backend
 
+GSTREAMER_CAIRO_USES=	gstreamer
+GSTREAMER_OPENGL_USES=	gstreamer
+GSTREAMER_CLUTTER_USES=	gstreamer
+
 GSTREAMER_CLUTTER_LIB_DEPENDS=	libclutter-1.0.so:graphics/clutter \
 				libclutter-gst-3.0.so:multimedia/clutter-gst3 \
 				libclutter-gtk-1.0.so:graphics/clutter-gtk3

multimedia/handbrake/Makefile

@@ -109,7 +109,7 @@ X11_CONFIGURE_ON=	--disable-gtk-update-checks
 X11_CONFIGURE_OFF=	--disable-gtk
 X11_LIB_DEPENDS=	libvpx.so:multimedia/libvpx \
 			libnotify.so:devel/libnotify
-X11_USES=	gettext desktop-file-utils gnome
+X11_USES=	gettext desktop-file-utils gnome gstreamer
 X11_USE=	gstreamer=gdkpixbuf,libav \
 		gnome=gtk30,intltool,cairo,gdkpixbuf2
 

sysutils/xfburn/Makefile

@@ -28,6 +28,7 @@ OPTIONS_DEFINE=			GSTREAMER NLS
 OPTIONS_DEFAULT=		GSTREAMER
 OPTIONS_SUB=			yes
 
+GSTREAMER_USES=			gstreamer
 GSTREAMER_CONFIGURE_ENABLE=	gstreamer
 GSTREAMER_USE=			gstreamer=faac,flac,lame,vorbis,wavpack
 

x11-toolkits/gtk40/Makefile

@@ -66,6 +66,7 @@ FFMPEG_LIB_DEPENDS=	libavcodec.so:multimedia/ffmpeg
 
 GSTREAMER_DESC=		GStreamer multimedia backend
 GSTREAMER_MESON_ENABLED=media-gstreamer
+GSTREAMER_USES=		gstreamer
 GSTREAMER_USE=		GSTREAMER=bad,gl
 
 VULKAN_DESC=		GDK Vulkan renderer backend

x11-toolkits/wxgtk31/Makefile

@@ -65,6 +65,7 @@ OPTIONS_SUB=		yes
 NLS_USES=			gettext
 
 GSTREAMER_CONFIGURE_ENABLE=	mediactrl
+GSTREAMER_USES=			gstreamer
 GSTREAMER_USE=			GSTREAMER=bad
 
 MSPACK_CONFIGURE_WITH=		libmspack