Added support for nvme ssd drives for puppy-save files

[Mariappan]

Fix for issue:
#1115

Rootcause:
In shutdownconfig, there is a if check to verify valid partitions. In that check, nvme* is not added, hence even if we select a valid partition with available space, not able to proceed.

Fix:
Added the nvme* in the 'if' check

[wdlkmpx]

This is something new. Actually several scripts might need the same patch, i can do that, but meanwhile can you paste the output of probepart and probedisk ?

[mavrothal]

Do these drives show OK in puppy desktop?
There are other scripts that may need fixing too. probedisk, pup_event/prontend_{change,funcs}, rc.sysinit, clean_desk_icons, df, puppyinstaller and probably others.
Would be nice to have more comprehensive support/commit.

[Mariappan]

Yes I have seen the need for this patch in her places too.
My knowledge in puppy linux is tooo low (today only installed as a recovery OS) and thought it would be better if someone who knows puppy linux fully to fix it completely.
I raised this pull request just to enable saving of puppy save files in nvm disk which will not harm any other funcitonality.

root# probepart
/dev/nvme0n1|none|1000215216
/dev/nvme0n1p1|ntfs|1003520
/dev/nvme0n1p2|vfat|1024000
/dev/nvme0n1p3|none|262144
/dev/nvme0n1p4|ntfs|485922816
/dev/nvme0n1p5|crypto_LUKS|419430400
/dev/nvme0n1p6|ext4|8388608
root# probedisk
root#

[wdlkmpx]

Ok thanks. I identified the scripts that need to be patched and that includes the init scripts, the pup_event* rox scripts and pup_event_frontend.bac...

I'll do that in the following days..

Anybody volunteer to rewrite pup_event_frontend.bac in C?