package/glslsandbox-player: add vivante fb default
When BR2_PACKAGE_IMX_GPU_VIV_OUTPUT_FB is selected, the native windowing
will be set to vivante frame buffer.
Signed-off-by: Julien Olivain <ju.o@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>