Build errors on Android with latest gradle

Updating Qt-based Android project to use latest gradle version (suggested by Android Studio) results in a "zipalign command failed." error on a signed APK build with Qt Creator.

Importing the same project output to Android Studio and building from there seems to work fine.

Minimum steps to reproduce:

• Create a basic Android project in Qt Creator
• Select "Create Templates" from project Build Settings
• Update build.gradle with "com.android.tools.build:gradle:4.1.1"
• overwrite gradle wrapper files with up-to-date versions (from Android Studio project)
• Build a signed APK

There is another unrelated issue with gradle.properties, where updating 'org.gradle.jvmargs' to contain '-Dfile.encoding=UTF-8' as in Android Studio project results in build failure because the file.encoding argument is clipped from '=' onwards in the Qt project build directory version of gradle.properties.