v2 ixgbe: consolidate all MSI-X ring interrupts and poll routines into one

v2 ixgbe: consolidate all MSI-X ring interrupts and poll routines into one

This change consolidates all of the MSI-X interrupt and polling routines
into two single functions.  One for the interrupt and one for the code.
The main advantage to doing this is that the compiler can optimize the
routines into single monolithic functions which should allow all of them
function to occupy a single block of memory and as such avoid jumping
around.

(cherry picked from commit 4ff7fb12cf92fd15e0fbae0b36cca0599f8a7d1b)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>