Add gstreamer1.0 to your image... For me I added the line to <build_dir>/conf/locale.conf
CORE_IMAGE_EXTRA_INSTALL += "packagegroup-fsl-gstreamer1.0-full"
Then, bitbake your image..
$bitbake core-image-x11
Then, make the sdk
$bitbake core-image-x11 -c populate_sdk_ext
Then install that sdk and you should have gstreamer in it.