linux-firmware: update to 20200918

linux-firmware: update to 20200918

00a84c5 linux-firmware: Update AMD SEV firmware
71338c2 Merge branch 'for-master' of https://github.com/CosmicPenguin/linux-firmware into main
07367b9 linux-firmware: Update firmware file for Intel Bluetooth AX200
1d1586a linux-firmware: Update firmware file for Intel Bluetooth AX201
28b333d linux-firmware: Update firmware file for Intel Bluetooth 9560
db30380 linux-firmware: Update firmware file for Intel Bluetooth 9260
eb3aa1f Mellanox: Add new mlxsw_spectrum firmware xx.2008.1310
ec88f05 mediatek: update MT7915 firmware to 20200819
a9993f8 brcm: Fix a stale symlink for RPi3 model b+
f48fec4 qcom: Add updated a5xx and a6xx microcode
d5f9eea wl18xx: update firmware file 8.9.0.0.83
7a237c6 linux-firmware: mt7615: update firmware to 20200814 version
74bd44f amdgpu: add navi12 firmware from 20.30
b9f69cd amdgpu: update navi10 firmware for 20.30

Signed-off-by: David Bauer <mail@david-bauer.net>