linux-firmware: add firmware for MT7920

Josh Boyerrequested to merge
mt7920 into main

Add binary firmware for MT7920 based devices

File: mediatek/WIFI_MT7961_patch_mcu_1a_2_hdr.bin Version: 20240930111002a File: mediatek/WIFI_RAM_CODE_MT7961_1a.bin Version: 20240930111041

Signed-off-by: Deren Wu deren.wu@mediatek.com Signed-off-by: Josh Boyer jwboyer@kernel.org

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