Updated thread locking to avoid deadlock scenario

Qualcomm submitted patch to address deadlock case when Rx
thread is processing a message while anthci->close is being called
diff --git a/src/qcomm-hidl/AntHidlClient.cpp b/src/qcomm-hidl/AntHidlClient.cpp
index 1baf140..fce47c4 100644
--- a/src/qcomm-hidl/AntHidlClient.cpp
+++ b/src/qcomm-hidl/AntHidlClient.cpp
@@ -198,13 +198,13 @@
 
    if(anthci != nullptr)
    {
-      std::unique_lock< std::mutex> lock(ant_hci.data_mtx);
-      ant_hci.data_cond.notify_all();
       auto hidl_daemon_status = anthci->close();
       if(!hidl_daemon_status.isOk())
       {
          ALOGE("%s: HIDL daemon is dead", __func__);
       }
+      std::unique_lock< std::mutex> lock(ant_hci.data_mtx);
+      ant_hci.data_cond.notify_all();
    }
    ant_hci.state = ANT_RADIO_DISABLED;
    ant_rx_clear();