linux-firmware: add firmware for MT7996

This patch adds firmware files for MT7996 WiFi devices.

File: mediatek/mt7996/mt7996_wm.bin
Version: 20240104161608
File: mediatek/mt7996/mt7996_wa.bin
Version: 20240104161505
File: mediatek/mt7996/mt7996_rom_patch.bin
Version: 20240104161614a
File: mediatek/mt7996/mt7996_dsp.bin
Version: 20231113135337
File: mediatek/mt7996/mt7996_eeprom.bin
Version: 20230518

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

WHENCE

@@ -5698,6 +5698,21 @@ Version: 20230728
 
 Licence: Redistributable. See LICENCE.mediatek for details.
 
+--------------------------------------------------------------------------
+
+Driver: mt7996e - MediaTek Wireless MACs for MT7996
+
+File: mediatek/mt7996/mt7996_wm.bin
+Version: 20240104161608
+File: mediatek/mt7996/mt7996_wa.bin
+Version: 20240104161505
+File: mediatek/mt7996/mt7996_rom_patch.bin
+Version: 20240104161614a
+File: mediatek/mt7996/mt7996_dsp.bin
+Version: 20231113135337
+File: mediatek/mt7996/mt7996_eeprom.bin
+Version: 20230518
+
 --------------------------------------------------------------------------
 Driver: nfp - Netronome Flow Processor