m28evk: Do not enable GStreamer plugin

The kernel used for this board is based in the mainline kernel and
does not provide the Freescale specific headers so we cannot build the
GStreamer specific plugin.

Change-Id: Icd9e08c3e774ea3a0df2c532ef52619d378a4fca
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
m53evk: Do not enable GStreamer plugin

The kernel used for this board is based in the mainline kernel and
does not provide the Freescale specific headers so we cannot build the
GStreamer specific plugin.

Change-Id: I382759bc05a74c638cb80dd61ce950bf896d33cf
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>