Fix Ubuntu 24.04 Wifi7 driver issue

diag_fix_ath12k_wifi7_driver.sh

sudo dmesg | grep ath12k

# [    6.100088] ath12k_pci 0000:06:00.0: BAR 0 [mem 0x81200000-0x813fffff 64bit]: assigned
# [    6.100107] ath12k_pci 0000:06:00.0: enabling device (0000 -> 0002)
# [    6.100266] ath12k_pci 0000:06:00.0: MSI vectors: 16
# [    6.100270] ath12k_pci 0000:06:00.0: Hardware name: wcn7850 hw2.0
# [    6.264622] mhi mhi0: Direct firmware load for ath12k/WCN7850/hw2.0/amss.bin failed with error -2
# [    6.264640] ath12k_pci 0000:06:00.0: failed to set mhi state: POWER_ON(2)
# [    6.264642] ath12k_pci 0000:06:00.0: failed to start mhi: -110
# [    6.264643] ath12k_pci 0000:06:00.0: failed to power up :-110
# [    6.285455] ath12k_pci 0000:06:00.0: failed to create soc core: -110

# line 7 indicates the firmware file is absent
# The fix is to download and install the latest Qualcomm Wifi 7 firmware as documented
# at: https://wireless.docs.kernel.org/en/latest/en/users/drivers/ath12k/installation.html

git clone https://git.codelinaro.org/clo/ath-firmware/ath12k-firmware
cd ath12k-firmware
wget https://github.com/qca/qca-swiss-army-knife/raw/master/tools/scripts/ath12k/ath12k-fw-repo
chmod 755 ath12k-fw-repo
sudo ./ath12k-fw-repo --install /lib/firmware

# NOTE: as of Ubuntu 24.04.01 (6.14.0-29-generic) rebuild kernel is unnecessary, justin install the firmware