The current code in GenericHardware.evaluate_hardware_support ends up
using hardware manager calls, which then use partly initialized hardware
manager list and can even cause a recursion.
This change introduces a new optional call initialize() which is
guaranteed to run:
1) After all hardware managers have been evaluated
2) After the hardware manager cache is populated
3) In the order of the support level of hardware managers
Change-Id: I068d3d73483c161062aa3b48f3154a2d99941382
Signed-off-by: Dmitry Tantsur <dtantsur@protonmail.com>
9426df9ab3