wifi: ath12k: Request vdev stats from firmware

Add support to request and print vdev stats from firmware through WMI.

Sample output:
-------------
cat /sys/kernel/debug/ath12k/pci-0000\:06\:00.0/mac0/fw_stats/vdev_stats

             ath12k VDEV stats
             =================

                       VDEV ID 0
              VDEV MAC address 00:03:7f:6c:9c:1a
                    beacon snr 96
                      data snr 255
                 num rx frames 0
                  num rts fail 0
               num rts success 0
                    num rx err 0
                num rx discard 0
              num tx not acked 0
            num tx frames [00] 0
            num tx frames [01] 0
            num tx frames [02] 0
            num tx frames [03] 2
    num tx frames retries [00] 0
    num tx frames retries [01] 0
    num tx frames retries [02] 0
    num tx frames retries [03] 0
   num tx frames failures [00] 0
   num tx frames failures [01] 0
   num tx frames failures [02] 0
   num tx frames failures [03] 0
          tx rate history [00] 0x00000000
          tx rate history [01] 0x00000000
          tx rate history [02] 0x00000000
          tx rate history [03] 0x00000000
          tx rate history [04] 0x00000000
          tx rate history [05] 0x00000000
          tx rate history [06] 0x00000000
          tx rate history [07] 0x00000000
          tx rate history [08] 0x00000000
          tx rate history [09] 0x00000000
      beacon rssi history [00] 0
      beacon rssi history [01] 0
      beacon rssi history [02] 0
      beacon rssi history [03] 0
      beacon rssi history [04] 0
      beacon rssi history [05] 0
      beacon rssi history [06] 0
      beacon rssi history [07] 0
      beacon rssi history [08] 0
      beacon rssi history [09] 0

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-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: Ramya Gnanasekar <ramya.gnanasekar@oss.qualcomm.com>
Reviewed-by: Aditya Kumar Singh <aditya.kumar.singh@oss.qualcomm.com>
Link: https://patch.msgid.link/20250124185330.1244585-2-ramya.gnanasekar@oss.qualcomm.com


Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>