Couple more minor bug fixes for FS timing mode.

src/cpu/simple/timing.cc:
    Fix another SC problem.
src/mem/cache/cache_impl.hh:
    Forgot to call makeTimingResponse() on uncached timing responses.

--HG--
extra : convert_revision : 5a5a58ca2053e4e8de2133205bfd37de15eb4209

src/mem/cache/cache_impl.hh

@@ -698,6 +698,7 @@ Cache<TagStore>::handleResponse(PacketPtr pkt)
             if (pkt->isRead()) {
                 target->pkt->setData(pkt->getPtr<uint8_t>());
             }
+            target->pkt->makeTimingResponse();
             cpuSidePort->respond(target->pkt, time);
         }
         assert(!mshr->hasTargets());