* Move the built-in cmdline configuration on a new menu entry "Boot
options", it doesn't make much sense to be part of the debuging menu.

* Rename "Kernel Type" menu to "Kernel features" to be more consistent with
what other architectures are using, plus "type" is a bit misleading here.

Signed-off-by: Nick Kossifidis
Signed-off-by: Palmer Dabbelt