gstreamer1.0-imx: rename to gstreamer1.0-plugins-imx

As the recipe requires gst-plugins-package.inc, this patch includes
-plugins- in the recipe name to make it clear that it actually
results in a set of plugin packages, following poky's convention.

Signed-off-by: Rogerio Nunes <rogerio.nunes@freescale.com>

diff --git a/meta-fsl-arm/recipes-multimedia/gstreamer/gstreamer1.0-imx_0.9.2.bb b/meta-fsl-arm/recipes-multimedia/gstreamer/gstreamer1.0-plugins-imx_0.9.2.bb
similarity index 100%
rename from meta-fsl-arm/recipes-multimedia/gstreamer/gstreamer1.0-imx_0.9.2.bb
rename to meta-fsl-arm/recipes-multimedia/gstreamer/gstreamer1.0-plugins-imx_0.9.2.bb