firmware: ath10k-firmware: update QCA9984 firmware to 10.4-3.5.3-00053

firmware: ath10k-firmware: update QCA9984 firmware to 10.4-3.5.3-00053

This patch updates ath10k-firmware to use the
firmware-5.bin_10.4-3.5.3-00053 firmware for the QCA9984.

The update fixes "ath10k_pci 0001:01:00.0: Invalid VHT mcs 15 peer
stats" spamming the kernel ring buffer at very high frequencies, but
introduces the new "ath10k_pci 0001:01:00.0: Unknown eventid: 36925".
This new warning doesn't appear to cause problems in practice and is
only emitted relatively rarely, not causing dmesg to overflow within
minutes.

Tested on the ZyXEL NBG6817; early feedback also suggests this firmware
to work well (with the same fixes and caveats) on the Netgear r7800 as
well.

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
Signed-off-by: Henryk Heisig <hyniu@o2.pl>