drm/i915/alpm: Compute ALPM parameters into crtc_state->alpm_state

drm/i915/alpm: Compute ALPM parameters into crtc_state->alpm_state

Currently ALPM parameters are computed directly into
intel_dp->alpm_parameters. This is a problem when compute config ends up to
not using the computed state.

Fix this by adding ALPM parameters into intel_crtc_state and compute into
there. Copy needed parameters (io_wake_lines and fast_wake_lines used by
PSR activate/exit) from crtc_state->alpm_state into
intel_dp->alpm.alpm_parameters when they are configured into HW.

v3:
  - enhance commit message
v2:
  - store io/fast wake lines into intel_dp->dp instead of
    intel_dp->alpm_parameters and do it in intel_psr_enable_locked
  - rename crtc_state->alpm_parameters -> crtc_state->alpm_state
  - clarify commit message

Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Animesh Manna <animesh.manna@intel.com>
Link: https://lore.kernel.org/r/20250929130003.28365-1-jouni.hogander@intel.com