minigbm/msm: Add workaround for waffle

minigbm/msm: Add workaround for waffle

Waffle does not support modifiers, detect it and fall back to linear
buffers.  Fixes glmark2-waffle, glbench/windowmanagertest, etc.

BUG=b:158238296, b:153675943
TEST=run glmark2-waffle and verify it displays correct
TEST=run graphics.Sanity and verify that it passes
TEST=start ui and verify that it still picks UBWC modifier

Change-Id: I591136c8d07bd32beb6f4efa63971821193ce39e
Exempt-From-Owner-Approval: already CR+2 from owner
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/minigbm/+/2343173
Tested-by: Rob Clark <robdclark@chromium.org>
Commit-Queue: Rob Clark <robdclark@chromium.org>
Reviewed-by: Rob Clark <robdclark@chromium.org>
Auto-Submit: Rob Clark <robdclark@chromium.org>