Praprogation from qcacld-3.0 to qcacld-3.1.
Change skb->sb such that it is overlayed between tx
and rx and each one of then still fits 48 bytes.
Note that this will break IPA and it will be fixed
subsequently by another change.
Change-Id: I96168aee99dbdbecbdbd4259597e179b02d29f5d
CRs-Fixed: 881090
Acked-by: Orhan K AKYILDIZ <oka@qca.qualcomm.com>