Rename kernel hash function names

[d3m3vilurr]

split from #393

motivation:
we have/found multiple kernel hash functions, but some functions communicated via encdec_w_portability_sm.self, another cases didn't.

original kernel nids are these 3 cases

1. don't have postfix
2. WithPortability
3. NP / WithKeygen

NP means no portability so that would change to WithoutPortability to match WithPortability
(but if we can write header definitions, it doesn't need. we can explain that meaning in document)

so we need to choose one(or two) of options;

1. just remain current code; we can handle it in documentation in future
2. remove WithPortability (or replace something)
3. replace WithoutPortability instead NP/WithKeygen

ref: https://wiki.henkaku.xyz/vita/SceSblSsMgr

PS. please don't talk about ForDriver, ForKernel postfix anymore. we don't accept that since 2016 (#99) .