qcacmn: Remove unnecessary checks in Tx path

1. Remove prints in per packet path
2. Add prefecth for skb shinfo
3. Avoid qdf_get_cpu() in DP tx

Change-Id: I86d196cc7865a2d5b3a5a6098f6f7d84397a60d0
CRs-Fixed: 3227568

qdf/inc/qdf_nbuf.h

@@ -4258,6 +4258,12 @@ qdf_nbuf_get_queue_mapping(qdf_nbuf_t buf)
 	return __qdf_nbuf_get_queue_mapping(buf);
 }
 
+static inline void
+qdf_nbuf_set_queue_mapping(qdf_nbuf_t buf, uint16_t val)
+{
+	__qdf_nbuf_set_queue_mapping(buf, val);
+}
+
 static inline uint8_t *
 qdf_nbuf_get_priv_ptr(qdf_nbuf_t buf)
 {