This patch fixes 2 issues:
1. Framebuffer should only be used in vga mode,
therefore when QxlDevice is active
FrameBufferIsActive flag shouldn't be checked;
2. FrameBufferIsActive flag should be set true
on successfull frame buffer allocation only.
Signed-off-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Sameeh Jubran <sameeh@daynix.com>