Merge pull request #15970 from akemimadoka:master

* Fix android armv7 c++_static init crash

* core: move initialization of 'ios_base::Init' for Android

modules/core/src/logger.cpp

@@ -21,6 +21,8 @@ namespace logging {
 
 static LogLevel parseLogLevelConfiguration()
 {
+    (void)getInitializationMutex();  // ensure initialization of global objects
+
     static cv::String param_log_level = utils::getConfigurationParameterString("OPENCV_LOG_LEVEL",
 #if defined NDEBUG
             "WARNING"