drm/i915/cdclk: Move intel_bw_crtc_min_cdclk() handling into intel_crtc_compute_min_c...

drm/i915/cdclk: Move intel_bw_crtc_min_cdclk() handling into intel_crtc_compute_min_cdclk()

intel_bw_crtc_min_cdclk() depends only on per-crtc state,
so there is no real point in having it complicate the global
bw_min_cdclk. Instead let's just account for it in
intel_crtc_compute_min_cdclk().

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250923171943.7319-16-ville.syrjala@linux.intel.com
Reviewed-by: Mika Kahola <mika.kahola@intel.com>