xf86-video-imxfb: Fix build using 1.14 Xorg server
mibstore functions are no longer supported. This patch removes them
from this driver, following the pattern in
http://patches.openembedded.org/patch/46133/
This checkin shows when/where the changes to the X server were made
that deleted the header mibstore.h and mentions the reasons.
http://lists.x.org/archives/xorg-devel/2012-September/033575.html
Change-Id: I3957ada1f71bffa3f1e3b4533e0a0d25bf5838cc Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
