SDP: add return after SDP disconnection

A return is needed after sdp_disconnect(). It is the logic
expected and it prevents the use of p_ccb after it's freed.

Bug: 144177780
Bug: 117105007
Test: manual test
Change-Id: I7a64382b36adca37a8ff0c7e361d89ecdc8f3b55
(cherry picked from commit 30efc8c90a846460359a489e17e1461c725958b3)
(cherry picked from commit 5edd605227af9a1b9eedf4fd9f02373a47fd49fb)
diff --git a/stack/sdp/sdp_discovery.cc b/stack/sdp/sdp_discovery.cc
index 7c55e8c..0c99495 100644
--- a/stack/sdp/sdp_discovery.cc
+++ b/stack/sdp/sdp_discovery.cc
@@ -474,6 +474,7 @@
       if (!sdp_copy_raw_data(p_ccb, false)) {
         SDP_TRACE_ERROR("sdp_copy_raw_data failed");
         sdp_disconnect(p_ccb, SDP_ILLEGAL_PARAMETER);
+        return;
       }
 
 #endif
@@ -703,6 +704,7 @@
   if (!sdp_copy_raw_data(p_ccb, true)) {
     SDP_TRACE_ERROR("sdp_copy_raw_data failed");
     sdp_disconnect(p_ccb, SDP_ILLEGAL_PARAMETER);
+    return;
   }
 #endif