functions: minor squashd() fix and stk() update
init: minor fixes and update

Fixed symlinking sdt{err,in,out};
Fixed forcibly loading remdev/boot/gpg kernel module groups;
Fixed imopt double string issue... and use a simple variant;
Moved loading remdev/gpg module to a proper place (stk());
Clean up/update 0.14.1 bits.
mkinitramfs-ll.{{ba,z}sh,conf}: module group support in boot group

Added kernel module group support in boot group, meaning, a kernel
module group e.g. kms can be added to boot group.