[android] Fix JNI building in no-unity mode

Signed-off-by: Konstantin Pastbin <konstantin.pastbin@gmail.com>

android/app/src/main/cpp/app/organicmaps/TrackRecorder.cpp

@@ -2,6 +2,8 @@
 
 #include "map/gps_tracker.hpp"
 
+#include "app/organicmaps/core/jni_helper.hpp"
+
 #include <chrono>
 
 extern "C"

android/app/src/main/cpp/app/organicmaps/platform/GuiThread.cpp

@@ -10,7 +10,7 @@ GuiThread::GuiThread()
 {
   JNIEnv * env = jni::GetEnv();
 
-  m_class = GetGlobalClassRef(env, "app/organicmaps/util/concurrency/UiThread");
+  m_class = jni::GetGlobalClassRef(env, "app/organicmaps/util/concurrency/UiThread");
   ASSERT(m_class, ());
 
   m_method = env->GetStaticMethodID(m_class, "forwardToMainThread", "(J)V");

android/app/src/main/cpp/app/organicmaps/settings/MapLanguageCode.cpp

@@ -2,6 +2,8 @@
 
 #include "platform/settings.hpp"
 
+#include "app/organicmaps/core/jni_helper.hpp"
+
 extern "C"
 {
 JNIEXPORT void JNICALL