drm/msm: Rename drm_msm_gem_submit_reloc::or in C++ code

Clashes with C++ `or` keyword

Signed-off-by: Danylo Piliaiev <dpiliaiev@igalia.com>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/528751/
Link: https://lore.kernel.org/r/20230326163813.535762-1-robdclark@gmail.com


Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>