h/q/d: Dump ovinfo only on pipe config errors

Dump ovinfo only when validateandSet fails due to invalid pipe
configs. Failure due to insufficient resource is common and
dumping ovinfo for such cases wont provide much information.

Change-Id: I9e102cf633bb394603ea2484d80017e4b906b49a
diff --git a/liboverlay/overlayMdp.cpp b/liboverlay/overlayMdp.cpp
index a25dc5e..cfbff5e 100644
--- a/liboverlay/overlayMdp.cpp
+++ b/liboverlay/overlayMdp.cpp
@@ -382,7 +382,8 @@
 #endif
 
     if(!mdp_wrapper::validateAndSet(fbFd, list)) {
-        if(list.processed_overlays < list.num_overlays) {
+        /* No dump for failure due to insufficient resource */
+        if(errno != E2BIG) {
             mdp_wrapper::dump("Bad ov dump: ",
                 *list.overlay_list[list.processed_overlays]);
         }