Devicetree updates for v5.3: - DT binding schema examples are now validated against the schemas. Various examples are fixed due to that. - Sync dtc with upstream version v1.5.0-30-g702c1b6c0e73 - Initial schemas for networking bindings. This includes ethernet, phy and mdio common bindings with several Allwinner and stmmac converted to the schema. - Conversion of more Arm top-level SoC/board bindings to DT schema - Conversion of PSCI binding to DT schema - Rework Arm CPU schema to coexist with other CPU schemas - Add a bunch of missing vendor prefixes and new ones for SoChip, Sipeed, Kontron, B&R Industrial Automation GmbH, and Espressif - Add Mediatek UART RX wakeup support to binding - Add reset to ST UART binding - Remove some Linuxisms from the endianness common-properties.txt binding - Make the flattened DT read-only after init - Ignore disabled reserved memory nodes - Clean-up some dead code in FDT functions