qemu: Add Device unit tests
qemu: Add Device unit tests

We add a NVDIMM, a filesystem and an empty device.

Signed-off-by: Samuel Ortiz <0ba86cb3f08bbb861958e54bd3438887adb4263c@linux.intel.com>

kaccardi/ciao,rbradford/ciao,kaccardi/ciao,ciao-project/ciao,mrkz/ciao,jorgevgut/ciao,erick0z/ciao,erick0z/ciao,tpepper/ciao,ciao-project/ciao,wcwxyz/ciao,mcastelino/ciao,matthewrsj/ciao,01org/ciao,wcwxyz/ciao,markdryan/ciao,tpepper/ciao,markdryan/ciao,leoswaldo/ciao,01org/ciao,wcwxyz/ciao,matthewrsj/ciao,tpepper/ciao,mrkz/ciao,erick0z/ciao,mrkz/ciao,matthewrsj/ciao,mcastelino/ciao,jorgevgut/ciao,jorgevgut/ciao,obedmr/ciao,leoswaldo/ciao,obedmr/ciao,rbradford/ciao,mcastelino/ciao,obedmr/ciao,leoswaldo/ciao