fm10k: Add support for basic interaction with hardware

This patch adds the basic read/write operations for accessing the hardware.

In addition to read read functionality the read functions also provide
surprise remove detection in the event that the device either loses power
or is removed.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>