Test that a page flip from a tiled buffer to a linear one works
correctly. First, it sets the crtc with the linear buffer andr
generate a reference crc for the pipe. Then, the crtc is set with
the tiled one and page flip to the linear one issued. A new crc is
generated and compared to the rerence one.
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
