misc-habanalabs-next-2019-05-03

The changes are either bug fixes or simple re-factoring of existing code.
The notable changes are:

- Add missing fields in the bmon structure that is passed in the debug
  IOCTL when the user wants to configure the bus monitor.

- Use the dedicated device-CPU accessible memory pool for all host memory
  allocations that are accessible directly by the embedded CPU. This is
  needed to enforce certain restrictions we have due to the embedded CPU's
  architecture.

- Manipulate DMA addresses only inside ASIC-specific files. This is needed
  to better support future ASICs code.

Other minor changes include:

- Move pr_fmt() to c files to avoid dependency in include order.

- Remove call to CS parsing function for workloads that originates from
  the driver and remove dead code as a result from this change.

- Update names of structure members and labels to better reflect their
  usage.

- When moving the dram PCI bar aperture, return the old aperture address
  range instead of error code. This will allow us to restore the old
  address range in a simpler fashion.