* Enable banklow (and so NUMA) by default
banklow=1 (2712) and banklow=3 (2711) give the best performance.
* enable_uart=1 now enables a Linix UART console on the 40-pin header
unless a cable is detected on the dedicated boot-uart.
* Recreate internal bl31 stub from clean git tree to fix dirty commit
message.
Interesting changes since the last automatic update:
* Enable network install
* Enable over-clocking frequencies > 3GHz
See: ttps://github.com/raspberrypi/firmware/issues/1876
* Adjust SDRAM refresh rate according to temperature and address a performance
gap between 4GB and 8GB parts in benchmarks.
See: https://github.com/raspberrypi/firmware/issues/1854
* Support custom CA certs with HTTPS boot
* Move non Kernel ARM stages back to 512KB
https://github.com/raspberrypi/firmware/issues/1868
* Assorted HAT+ and NVMe interop improvements.
* Fix TRYBOOT if secure-boot is enabled.
* Preliminary support for D0 and CM5.
