qcacmn: Fix compiler issue without CONFIG_DP_TRACE

Compiler threw error -
implicit declaration of function 'qdf_dp_trace_apply_tput_policy'
when CONFIG_DP_TRACE not enabled.

Change-Id: Ia4e6fdf129b7fdc31c901b6fa78ce2cb0935b369
CRs-Fixed: 2433430

qdf/inc/qdf_trace.h

@@ -937,6 +937,11 @@ void qdf_dp_trace_clear_buffer(void)
 {
 }
 
+static inline
+void qdf_dp_trace_apply_tput_policy(bool is_data_traffic)
+{
+}
+
 static inline
 void qdf_dp_trace_data_pkt(qdf_nbuf_t nbuf, uint8_t pdev_id,
 			   enum QDF_DP_TRACE_ID code, uint16_t msdu_id,