commit 0803918e64262482035f042e5e1f2a571d3dea1b
Author: Adam Jackson <ajax@redhat.com>
Date:   Sat Sep 24 19:40:52 2016 -0400

    fb: Remove 24bpp support (v3)

removes the gc.pRotatedPixmap member without a guide to the ABI bump.
Don't initialize pRotatedPixmap out from the start of the unstable tag .

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>