gst-fsl-plugin: Update to 3.0.8 version

gst-fsl-plugin: Update to 3.0.8 version

This release had many patches merged upstream and thus those are being
removed. Following patches were merged:

 - Link-with-the-Real-Time-Extension-lib.patch
 - fix-missing-sys-types-h.patch
 - v4lsink_back_compatible.patch
 - vss_build_failed.patch

A new runtime dependency for libfslparser has been added. This is need
to be available at rootfs but no code links to it explicitly so
gst-fsl-plugin needs to made it explicit.

The file, used in SRC_URI, is from 3.5.7-1.0.0 BSP but its contents
explicitly say it is a 3.0.8 release so we use the source version to
avoid supporting different version from different kernel releases.

Change-Id: Id71d436af78dc62f620107d64633bf1ebbdaefef
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>