Merge patch series "buildman: Add initial support for config fragments"

Simon Glass <sjg@chromium.org> says:

This series updates buildman to process #include lines in defconfig
files. With this, it is no-longer necessary to duplicate lines certain
lines from the include-file in the defconfig, e.g. CONFIG_ARM and
CONFIG_SOC_...

Link: https://lore.kernel.org/r/20241108152350.3686274-1-sjg@chromium.org