ixgbe: Roll RSC code into non-EOP code
ixgbe: Roll RSC code into non-EOP code

This change moves the RSC code into the non-EOP descriptor handling
function. The main motivation behind this change is to help reduce the
overhead in the non-RSC case. Previously the non-RSC path code would
always be checking for append count even if RSC had been disabled. Now
this code is completely skipped in a single conditional check instead of
having to make two separate checks.

Signed-off-by: Alexander Duyck <af56634f9be8457194a3461ec96c497f138af4ff@intel.com>
Tested-by: Phil Schmitt <e59a1cb13110d2d5848864a809262db69840c26d@intel.com>
Signed-off-by: Peter P Waskiewicz Jr <019ca817bcedb2fce0c539efa1b71c24f7a6c1c1@intel.com>

KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas