mkinitfs-rundep: print full paths, include the binary itself
init: do not add tty0 to inittab

It is default console and should not be added to inittab
init: improve kernel param parsing

We only set KOPT_* for the args we actually use and ignore the rest.
Revert "init: do not add tty0 to inittab"

Will cause an infinite loop

This reverts commit 7610f39218f20a0d9dc207174cae51008a189016.
skip "current console" from beign added to inittab