acpi, nfit: add support for NVDIMM_FAMILY_INTEL v1.6 DSMs

Per v1.6 of the NVDIMM_FAMILY_INTEL command set [1] some of the new
commands require rev-id 2. In addition to enabling ND_CMD_CALL for these
new function numbers, add a lookup table for revision-ids by family
and function number.

[1]: http://pmem.io/documents/NVDIMM_DSM_Interface-V1.6.pdf



Signed-off-by: Dan Williams <dan.j.williams@intel.com>