Updated nonfree firmware packages fix security vulnerability

Updated nonfree firmwares fixees various issues, adds new / improved hardware support and fixes at least the following security issue: An issue was discovered on Broadcom Wi-Fi client devices. Specifically timed and handcrafted traffic can cause internal errors (related to state transitions) in a WLAN device that lead to improper layer 2 Wi-Fi encryption with a consequent possibility of information disclosure over the air for a discrete set of traffic (CVE-2019-15126). Full list of updates: * kernel-firmware-nonfree: - add firmware for Lontium LT9611UXC DSI to HDMI bridge - brcm: Add NVRAM for Vamrs 96boards Rock960 - brcm: make AP6212 in bananpi m2 plus/zero work - brcm: Link RPi4’s WiFi firmware with DMI machine name - brcm: Update Raspberry Pi 3B+/4B NVRAM for downstream changes - brcm: remove old brcm firmwares that have newer cypress variants (CVE-2019-15126) - cypress: Link the new cypress firmware to the old brcm files (CVE-2019-15126) - i915: Add GuC firmware v49.0.1 for all platforms - i915: Add GuC v49.0.1 for DG1 - i915: Add HuC v7.7.1 for DG1 - i915: Add DMC v2.01 for ADL-S - mediatek: update MT8173 VPU firmware to v1.1.6 - mediatek: add firmware for MT7921 - Mellanox: Add new mlxsw_spectrum firmware xx.2008.2304 - qcom: add firmware files for Adreno a650 - qcom: Add SM8250 Audio DSP firmware - qcom: Add SM8250 Compute DSP firmware - qcom: Add venus firmware files for VPU-1.0 * iwlwifi-firmware: - Update firmware for Intel Bluetooth AX200, AX201, AX210 to 22.30.0.4 * rtlwifi-firmware: - rtw89: 8852a: add firmware v0.9.12.2