1. Define bitmap array appropriately and expand ppdu per user
tx stats array to accomodate upto 8 users stats
2. Fix issue where even with 1 WLAN STA user_index was exceeding zero
3. Allocate 5 bits for ppdu_type variable
Change-Id: I969c929c3e16d4027a5e642a0a9195979c95e9cc
CRs-Fixed: 2121122