wifi: ath12k: Move HAL Cookie Conversion and RBM related APIs to wifi7 directory

wifi: ath12k: Move HAL Cookie Conversion and RBM related APIs to wifi7 directory

Move the hardware specific HAL APIs to hal.c file
inside wifi7 directory. These APIs will be called
through the hal_ops mechanism, which are registered
separately by qcn and wcn

Handling following APIs:
ath12k_wifi7_hal_cc_config
ath12k_wifi7_hal_get_idle_link_rbm

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: Pavankumar Nandeshwar <quic_pnandesh@quicinc.com>
Signed-off-by: Ripan Deuri <quic_rdeuri@quicinc.com>
Reviewed-by: Baochen Qiang <baochen.qiang@oss.qualcomm.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20251009111045.1763001-15-quic_rdeuri@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>