Android: use m_context in QtServiceLoader.initContextInfo()

since m_service will not be yet set, m_context should be used here.

Task-number: QTBUG-115016
Pick-to: 6.7
Change-Id: Ie259e703da1d8aac23117f032b7d146f7060aac2
Reviewed-by: Assam Boudjelthia <assam.boudjelthia@qt.io>
Reviewed-by: Janne Juntunen <janne.juntunen@qt.io>
Reviewed-by: Petri Virkkunen <petri.virkkunen@qt.io>

src/android/jar/src/org/qtproject/qt/android/QtServiceLoader.java

@@ -25,8 +25,8 @@ class QtServiceLoader extends QtLoader {
     @Override
     protected void initContextInfo() {
         try {
-            m_contextInfo = m_service.getPackageManager().getServiceInfo(
-                    new ComponentName(m_service, m_service.getClass()),
+            m_contextInfo = m_context.getPackageManager().getServiceInfo(
+                    new ComponentName(m_context, m_context.getClass()),
                     PackageManager.GET_META_DATA);
         } catch (Exception e) {
             e.printStackTrace();