wifi: ath12k: Rename ahb_hif_ops to reflect generic usage

wifi: ath12k: Rename ahb_hif_ops to reflect generic usage

Rename ahb_hif_ops structure to remove the IPQ5322 qualifier and reflect
its generic applicability across multiple targets. Clarify its role as a
container for common HIF callbacks.

This renaming is part of a broader effort to modularize the codebase
by separating common logic from device-specific implementations.

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: Kiran Venkatappa <quic_kiranv@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/20250812-ath12k-mod-v1-6-8c9b0eb9335d@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>