skb: printing port numbers with gso trace events

Adding source and destination port number info
in the gso trace events to differentiate between
the flows.

CRs-Fixed: 982871
Change-Id: Idbae7f95dfd56293805b58e3c6626f5f6e07d08a
Acked-by: Ashwanth Goli <ashwanth@qti.qualcomm.com>
Signed-off-by: Ravinder Konka <rkonka@codeaurora.org>
[subashab@codeaurora.org: resolve trivial merge conflicts]
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>