qcacmn: Assert only when unmapped is true in rx_desc

The existing assertions for unmapped variable in
rx descriptor results in an undesired bug_on since
the unmapped value is 0 for active descriptors.

The fix is to modify this assertion so that bug_on will
be triggered only if the unmapped value is 1 in rx
desc.

Change-Id: I03b27e0e42ce3c42b9fa148da9258063b0209b08
CRs-Fixed: 2985248

dp/wifi3.0/li/dp_li_rx.c

@@ -188,7 +188,7 @@ more_data:
 					   ring_desc, rx_desc);
 		if (QDF_IS_STATUS_ERROR(status)) {
 			if (qdf_unlikely(rx_desc && rx_desc->nbuf)) {
-				qdf_assert_always(rx_desc->unmapped);
+				qdf_assert_always(!rx_desc->unmapped);
 				dp_ipa_reo_ctx_buf_mapping_lock(soc,
 								reo_ring_num);
 				dp_ipa_handle_rx_buf_smmu_mapping(