wifi: ath12k: Remove hal_rx_ops and merge into hal_ops

wifi: ath12k: Remove hal_rx_ops and merge into hal_ops

Move following ops from hal_rx_ops to hal_ops to simplify the HAL interface.

rx_desc_get_l3_pad_bytes
rx_desc_get_mpdu_start_tag
rx_desc_get_mpdu_ppdu_id
rx_desc_get_msdu_payload

Remove the hal_rx_ops as they become unused with this change.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-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: Ripan Deuri <quic_rdeuri@quicinc.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Reviewed-by: Baochen Qiang <baochen.qiang@oss.qualcomm.com>
Link: https://patch.msgid.link/20250910181414.2062280-8-quic_rdeuri@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>