qede: add base driver

qede: add base driver

The base driver is the backend module for the QLogic FastLinQ QL4xxxx
25G/40G CNA family of adapters as well as their virtual functions (VF)
in SR-IOV context.

The purpose of the base module is to:
 - provide all the common code that will be shared between the various
   drivers that would be used with said line of products. Flows such as
   chip initialization and de-initialization fall under this category.
 - abstract the protocol-specific HW & FW components, allowing the
   protocol drivers to have clean APIs, which are detached in its
   slowpath configuration from the actual Hardware Software Interface(HSI).

This patch adds a base module without any protocol-specific bits.
I.e., this adds a basic implementation that almost entirely falls under
the first category.

Signed-off-by: Harish Patil <harish.patil@qlogic.com>
Signed-off-by: Rasesh Mody <rasesh.mody@qlogic.com>
Signed-off-by: Sony Chacko <sony.chacko@qlogic.com>