UBWC_MODE is a one-bit-wide field, so a value of 2 is obviously bogus.

Replace it with the correct value (0).

Fixes: 18397519 ("drm/msm/adreno: Add A702 support")
Reported-by: Connor Abbott <cwabbott0@gmail.com>
Closes: https://lore.kernel.org/linux-arm-msm/CACu1E7FTN=kwaDJMNiTmFspALzj2+Q-nvsN5ugi=vz4RdUGvGw@mail.gmail.com/Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/597359/Signed-off-by: Rob Clark <robdclark@chromium.org>