platform-views: fix wrong log level (sony#378)

This change fixes a wrong log level setting in platform-views implementation.

Signed-off-by: Hidenori Matsubayashi <[email protected]>

Author: HidenoriMatsubayashi

src/flutter/shell/platform/linux_embedded/plugins/platform_views_plugin.cc

@@ -230,7 +230,7 @@ void PlatformViewsPlugin::PlatformViewsTouch(
   auto x = std::get<double>(pointer_coord[7]);
   auto y = std::get<double>(pointer_coord[8]);
 
-  ELINUX_LOG(ERROR) << "Touch the platform view: id = " << view_id
+  ELINUX_LOG(TRACE) << "Touch the platform view: id = " << view_id
                     << ", device_id = " << device_id
                     << ", event_type = " << event_type << ", x = " << x
                     << ", y = " << y;