linux: Translate Linux NVME ioctls to the lower layers.

[imp]

Summary

The lower layers implement a ABI compatible Linux ioctl for a few of the
Linux IOCTLs. Translate them and pass them down. Since they are ABI
compatible, just use the nvme ioctl name.

Co-Authored-by: Warner Losh <[e-mail]>

[chuck]

Testing with an unmodified Linux nvme-cli fails without the noted change masking cmd. Fix that, and this LGTM. Thanks for all the integration!

sys/compat/linux/linux_ioctl.c

3545

nit: 'Nvme' should be 'NVMe'

3549

cmd needs to be masked. I.e.,

+       switch (args->cmd & UINT16_MAX)

[imp]

update, per chuck's feedback. Used &0xffff instead of his suggestion
to match the rest of the file.