linux-firmware: Update Intel Wireless Wifi 3945 firmware

Version is now 15.32.2.9
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

WHENCE

@@ -620,7 +620,7 @@ Marvell's "Extranet" with permission.
 Driver: iwlwifi - Intel Wireless Wifi
 
 File: iwlwifi-3945-2.ucode
-Info: v15.28.2.8
+Info: v15.32.2.9
 
 File: iwlwifi-4965-2.ucode
 Info: v228.57.2.23