DTC 1.7.1 Changes sinve v1.7.0 include: * dtc * Fix check for 10-bit I2C addresses * Improve documentation of -@ option * Update to libyaml >= 0.2.3 * Improvements & fixes for device graph checks * Add -L / --local-fixups option * Add check for length of interrupt-map properties * libfdt * Add fdt_path_getprop_namelen() * Add fdt_get_symbol() and fdt_get_symbol_namelen() * Correct documentation of fdt_path_offset() * Correct documentation of fdt_appendprop_addrrange() * Validate aliases is fdt_get_alias_namelen() * Don't overwrite phandles when applying overlays * Require Python 3 * pylibfdt * Support boolean properties * Fixes for current Python versions * General * Assorted bugfixes * Assorted build improvements * Assorted typo fixes in docs * Some additional testcases * Move to GitHub Actions based CI