wifi: ath12k: Refactor REO command to use ath12k_dp_rx_tid_rxq

wifi: ath12k: Refactor REO command to use ath12k_dp_rx_tid_rxq

Introduce ath12k_dp_rx_tid_rxq as a lightweight structure to represent
only the necessary fields for REO command construction. Replace direct
usage of ath12k_dp_rx_tid in REO command paths with this new structure.

This decouples REO command logic from internal TID state representation,
improves modularity, and reduces unnecessary data dependencies.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Signed-off-by: Nithyanantham Paramasivam <nithyanantham.paramasivam@oss.qualcomm.com>
Reviewed-by: Baochen Qiang <baochen.qiang@oss.qualcomm.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250806111750.3214584-5-nithyanantham.paramasivam@oss.qualcomm.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>