gst1-imx: fix v4l2 plugins disable options

Latest bump to v0.13.0 didn't take care of the following upstream
commit:

  7bfbf71 v4l2: Rename to v4l2video and add switches to enable/disable sink/source

To address that, this commit:

 - Uses the new name of the v4l2 source configure script option

 - Introduce a new Config.in option to control the build of the v4l2
   sink support

Fixes:

  http://autobuild.buildroot.net/results/5c404a2a28a4052056e5c9a7edda40641fe55f9e

Signed-off-by: Gary Bisson <gary.bisson@boundarydevices.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/gstreamer1/gst1-imx/Config.in

@@ -84,4 +84,10 @@ config BR2_PACKAGE_GST1_IMX_V4L2VIDEOSRC
 	help
 	  Elements for V4L2 capture
 
+config BR2_PACKAGE_GST1_IMX_V4L2VIDEOSINK
+	bool "imxv4l2videosink"
+	select BR2_PACKAGE_GST1_PLUGINS_BAD
+	help
+	  Elements for V4L2 output
+
 endif

package/gstreamer1/gst1-imx/gst1-imx.mk

@@ -83,10 +83,17 @@ GST1_IMX_CONF_OPTS += --disable-vpu
 endif
 
 ifeq ($(BR2_PACKAGE_GST1_IMX_V4L2VIDEOSRC),y)
-# There's no --enable-v4l2src option
+# There's no --enable-imxv4l2videosrc option
 GST1_IMX_DEPENDENCIES += gst1-plugins-bad
 else
-GST1_IMX_CONF_OPTS += --disable-v4l2src
+GST1_IMX_CONF_OPTS += --disable-imxv4l2videosrc
+endif
+
+ifeq ($(BR2_PACKAGE_GST1_IMX_V4L2VIDEOSINK),y)
+# There's no --enable-imxv4l2videosink option
+GST1_IMX_DEPENDENCIES += gst1-plugins-bad
+else
+GST1_IMX_CONF_OPTS += --disable-imxv4l2videosink
 endif
 
 $(eval $(waf-package))