drm/msm/dsi: Allow values of 10 and 12 for bits per component

drm/msm/dsi: Allow values of 10 and 12 for bits per component

The DRM DSC helper has various bits_per_component values - not just 8.
But the DSC 1.1 block supports only 8, 10, and 12. Extend the guard
accordingly and add a comment noting this limitation.

Signed-off-by: Eugene Lepshy <fekz115@gmail.com>
Co-developed-by: Danila Tikhonov <danila@jiaxyga.com>
Signed-off-by: Danila Tikhonov <danila@jiaxyga.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/637831/
Link: https://lore.kernel.org/r/20250217222431.82522-4-danila@jiaxyga.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>