qcacmn: Fix DP flow pool map for non-LFR3 roaming

tx_desc allocation failures are observed when running roaming scenarios
on Napier x86, where roaming offload is disabled (non-LFR3) and during
roaming reassociation is sent by DUT. With Lithium_DP, tx_desc are
pre-allocated within flow pool and flow pool map and unmap are currently
hooked in policy manager when connection table is updated.

In roaming scenario, flow pool is created when STA is associated with old
AP. But new flow pool is not created but is reused with old AP since same
flow pool id is passed from protocol stack. When old AP is removed from
policy manager connection table, flow pool is thus unmapped which leads to
EAPOL packets transmit failure due to unavailability of tx desc.

Fix is to increate pool_create_cnt to avoid flow pool being unmapped.

Change-Id: Ia912c1d7fe8319bece00869a9a47c8a760b17e2f
CRs-Fixed: 2287284

dp/wifi3.0/dp_tx_flow_control.c

@@ -136,6 +136,9 @@ struct dp_tx_desc_pool_s *dp_tx_create_flow_pool(struct dp_soc *soc,
 			pool->status = FLOW_POOL_ACTIVE_UNPAUSED;
 		else
 			pool->status = FLOW_POOL_ACTIVE_PAUSED;
+
+		pool->pool_create_cnt++;
+
 		qdf_spin_unlock_bh(&pool->flow_pool_lock);
 		return pool;
 	}