linux-firmware: update firmware for Intel 6205 Series Wi-Fi Adapters

New version 17.168.5.3

Changelog
- Add "low temperature" support
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

WHENCE

@@ -708,7 +708,7 @@ File: iwlwifi-6050-5.ucode
 Info: v41.28.5.1
 
 File: iwlwifi-6000g2a-5.ucode
-Info: v17.168.5.1
+Info: v17.168.5.3
 
 File: iwlwifi-6000g2b-5.ucode
 Info: v17.168.5.1