The driver already has support for sm8150/sm8250, but the compatibles were
never added.

Also inverse the non-mdp4 condition in add_display_components() to avoid
having to check every new compatible in the condition.
Signed-off-by: NJonathan Marek <jonathan@marek.ca>
Signed-off-by: NDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: NStephen Boyd <swboyd@chromium.org>
Reviewed-by: NBjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20210329120051.3401567-4-dmitry.baryshkov@linaro.orgSigned-off-by: NRob Clark <robdclark@chromium.org>