drm/i915/display: Drop crtc_state from C10/C20 pll programming

For PLL programming for C10 and C20 we don't need to
carry crtc_state but instead use only necessary parts
of the crtc_state i.e. pll_state.

This change is needed to PTL wa 14023648281 where we would
need to otherwise pass an artificial crtc_state with majority
of the struct members initialized as NULL.

v2: Use err instead of val for error handling (Imre)
    Unify parameter order (Imre)
v3: Fix misplaced port_clock, and is_dp in
    intel_c20_pll_program() call (Imre)

Signed-off-by: Mika Kahola <mika.kahola@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250218100019.740556-2-mika.kahola@intel.com