This uses the locking mechanism provided by the build system to grab a lock
(namely firmware-install) every time a firmware needs to be installed.
This is similar to the mechanism that python uses (exec_thread_safe)
but less restrictive since we do not grab a global lock.
* Add project NXP/iMX6
* add metapackage for NXP project
* add bootloader scripts for iMX6 devices
* add linux arm config for iMX6 devices
* add options file for iMX6 devices
* Include firmware for iMX6 devices
* linux: include builtin firmware for iMX6 sdma
* NXP/iMX6: fix linux config
* NXP/iMX6: include firmware-imx and kernel-firmware packages
* firmware-imx: fix pkg variables and change firmwares target dir
* NXP/iMX6: add fix etnaviv GPU driver breakage
* NXP/iMX6: set output resolution to 1080p
* Add support for Wandboard Quad/QuadPlus (iMX6)
* NXP/iMX6: add systemd service to run hciattach
* NXP/iMX6: add udev rule to start hciattach service
* NXP/iMX6: fix linux config
* NXP/iMX6: include wlan-firmware and brcmfmac_sdio firmware pkgs
* scripts/uboot_helper: include Wandboard Quad b1/c1/d1, QuadPlus d1
* brcmfmac_sdio-firmware: update to b51b1c3
* NXP/iMX6: add fix brcm chip connection timeout error in Wandboard b1
* Update iMX6 kernel to 5.4.61-LTS
* NXP/iMX6: update linux config
* NXP/iMX6: switch kernel from 'default' to 'mainline-5.4'
* NXP/iMX6: remove fix etnaviv GPU driver breakage
* NXP/iMX6: add fix bluez compilation with linux 5.2 and higher
* build_all.sh: include NXP/iMX6
