wifi: ath12k: Add hash table for ath12k_dp_link_peer

wifi: ath12k: Add hash table for ath12k_dp_link_peer

There is a linked list of ath12k_dp_link_peer maintained in ath12k_dp. For
link peer search based on mac address, there is iteration over the list wherein
the mac address are compared for each entry in the list. This search operation
is a costly operation considering the time complexity involved.

In order to reduce the complexity, add hash table for ath12k_dp_link_peer in
ath12k_dp where mac address of the link peer is used to derive the hash index.
This hash table is lock protected by spinlock "dp_lock" present in ath12k_dp.

This hash table is currently used for search of link peer using mac address for
any interaction between control path and data path, per packet Rx monitor path
and regular multicast Tx path.

Update API ath12k_dp_link_peer_find_by_addr() to make use of the hash table for
search operation using mac address, while other search APIs still rely on linked
list.

ath11k driver has been taken as reference for implementation of hash table.

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: Harsh Kumar Bijlani <quic_hbijlani@quicinc.com>
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/20251024181548.3255166-6-quic_rdeuri@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>