I've tried my best to provide a correct matching for these, but
there are two exceptions:
* fake_drac uses iscsi deploy with None boot, which cannot work,
so changing both to fake
* some fake drivers are migrated to the 'fake' power interface,
which is changed to include soft power as well.
The latter means that all fake classic drivers now support fake
soft power actions, while previously only fake_soft_power did.
Now fake_soft_power is identical to fake and is left for backward
compatibility
Also wrote more tests to check correctness of this migration.
Change-Id: I00c9c6ed698b10f035e65428e1a20d733c7e544a
Partial-Bug: #1690185
d1062cfbdd