codec2 client: add a missing transaction status check

Bug: 172493446
Test: atest CtsMediaTestCases -- --module-arg CtsMediaTestCases:size:small
Change-Id: I209d6c4e1cd6d278532172aeaf05bd9557304eea
diff --git a/media/codec2/hidl/client/client.cpp b/media/codec2/hidl/client/client.cpp
index 7e4352d..4650672 100644
--- a/media/codec2/hidl/client/client.cpp
+++ b/media/codec2/hidl/client/client.cpp
@@ -843,6 +843,11 @@
                             return;
                         }
                     });
+            if (!transStatus.isOk()) {
+                LOG(DEBUG) << "SimpleParamReflector -- transaction failed: "
+                           << transStatus.description();
+                descriptor.reset();
+            }
             return descriptor;
         }