Write MINIMAL_SDK to exception message

This changes writes the required and current Android SDK level to the exception message. This enables Crash Reporting tools to capture more information about this crash.

Author: ueman

shell/platform/android/io/flutter/plugin/platform/PlatformViewsController.java

@@ -240,10 +240,8 @@ public void clearFocus(int viewId) {
 
         private void ensureValidAndroidVersion() {
             if (Build.VERSION.SDK_INT < MINIMAL_SDK) {
-                Log.e(TAG, "Trying to use platform views with API " + Build.VERSION.SDK_INT
-                    + ", required API level is: " + MINIMAL_SDK);
-                throw new IllegalStateException("An attempt was made to use platform views on a"
-                    + " version of Android that platform views does not support.");
+                throw new IllegalStateException("Trying to use platform views with API "
+                    + Build.VERSION.SDK_INT + ", required API level is: " + MINIMAL_SDK);
             }
         }
     };