Claude review: drm/dp: Rename and relocate AS SDP payload field masks

Claude Code Review Bot
2026-04-12T02:51:24Z

Patch Review

**R-b: Ville Syrjala**

Clean rename from `DP_ADAPTIVE_SYNC_SDP_OPERATION_MODE`/`DP_ADAPTIVE_SYNC_SDP_LENGTH` to `DP_AS_SDP_OPERATION_MODE_MASK`/`DP_AS_SDP_LENGTH_MASK` and relocation out of the DPRX feature enumeration section. The usage in `intel_dp_as_sdp_unpack()` is correctly updated. No functional change.

No issues.