Integrate buildroot into devlib in order to ease building kernel and
root filesystem images via 'generate-kernel-initrd.sh' helper script.
As its name suggests, the script builds kernel image which also includes
an initial RAM disk per default config files located under
configs/<arch>/.
Provide config files for buildroot and Linux kernel as well as a
post-build.sh script which tweaks (e.g., allowing root login on SSH)
target's root filesystem.
doc/tools.rst talks about details of kernel and rootfs configuration.
Signed-off-by: Metin Kaya <metin.kaya@arm.com>
Update the documentation to indicated which module each class is
located. This allows the documentation to be referenced from other
modules as well as enabling links to the source code directly from the
documentation.
