1. Don't throw unspecified entries too early. Doing so caused various
rendering glitches. And we can now also check if an entry is
selected but it's parent not.
2. "menu"s in Kconfig can also have dependencies...
Some pre-existing .toml data files are found problematic after the
change, fix them and regenerate all rendered -kernel.xml files.
This is stupid and it will cause meaningless diffs in version control
(like this commit does :( ).
Remove the kernel version from the generated XML files. Add
kernel.version file into git to track the kernel version.
