linux-firmware: update firmware for MT7996

This commit updates firmware files to 20240809 for MT7996 WiFi devices.

Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Josh Boyer <jwboyer@kernel.org>

WHENCE

@@ -5827,13 +5827,13 @@ Licence: Redistributable. See LICENCE.mediatek for details.
 Driver: mt7996e - MediaTek Wireless MACs for MT7996
 
 File: mediatek/mt7996/mt7996_wm.bin
-Version: 20240104161608
+Version: 20240809121753
 File: mediatek/mt7996/mt7996_wa.bin
-Version: 20240104161505
+Version: 20240809121718
 File: mediatek/mt7996/mt7996_rom_patch.bin
-Version: 20240104161614a
+Version: 20240809121758a
 File: mediatek/mt7996/mt7996_dsp.bin
-Version: 20231113135337
+Version: 20240809121650
 File: mediatek/mt7996/mt7996_eeprom.bin
 Version: 20230518