ag71xx: Reorder ag71xx struct members for better cache performance

ag71xx: Reorder ag71xx struct members for better cache performance

Qualcomm claims this improves the D-cache footprint. Origina commit message below:

From: Ben Menchaca <ben.menchaca@qca.qualcomm.com>
Date: Fri, 7 Jun 2013 10:57:28 -0500
Subject: [ag71xx] cluster/align structs for cache perf

Cluster the frequently used, per-packet structures in ag71xx near
to each other, and cacheline-align them.  Some other re-ordering
occurred to move "warmer" structures near the per-packet structures.

Signed-off-by: Ben Menchaca <ben.menchaca@qca.qualcomm.com>
Signed-off-by: Rosen Penev <rosenp@gmail.com>