qcacmn: Rx and Tx peer statistics update

 * Update the pkt_type counters correctly within the array bound
 * Add support for NSS counters on Tx side
 * Update ampdu flag in PPDU struct
 * Add support for ampdu flag in hal_ppdu struct

Change-Id: I79ea52727124ea4be4d82912cb2513ea58e2af10
7 files changed