layerscape: add FRWY-LS1046A board support

layerscape: add FRWY-LS1046A board support

The LS1046A Freeway board (FRWY) is a high-performance computing,
evaluation, and development platform that supports the QorIQ
LS1046A architecture processor capable of support more than 32,000
CoreMark performance. The FRWY-LS1046A board supports the QorIQ
LS1046A processor, onboard DDR4 memory, multiple Gigabit Ethernet,
USB3.0 and M2_Type_E interfaces for Wi-Fi.

The FRWY-LS1046A-TP includes the Coral Tensor Flow Processing Unit
that offloads AI/ML inferencing from the CPU to provide significant
boost for AI/ML applications. The FRWY-LS1046A-TP includes one M.2
TPU module and more modules can easily be added including USB
versions of the module to scale the AI/ML performance.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
[rebase, use AUTORELEASE, fix sorting, add dtb to firmware part]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>