qcacld-3.0: Enable obss detection offload

Enable firmware based obss detection.

Change-Id: I218337092e553bca0737864214c16b0dacbfa3be
CRs-Fixed: 2171944
diff --git a/core/mac/src/pe/lim/lim_send_sme_rsp_messages.c b/core/mac/src/pe/lim/lim_send_sme_rsp_messages.c
index 10c6755..13f72e6 100644
--- a/core/mac/src/pe/lim/lim_send_sme_rsp_messages.c
+++ b/core/mac/src/pe/lim/lim_send_sme_rsp_messages.c
@@ -2492,6 +2492,8 @@
 			pe_debug("Failed to Transmit Beacons on channel: %d after AP channel change response",
 				       psessionEntry->bcnLen);
 		}
+
+		lim_obss_send_detection_cfg(pMac, psessionEntry, true);
 	}
 	return;
 }