Add CMake property to set androidCompileSdkVersion or --android-platform used by androiddeployqt

https://doc.qt.io/qt-6/android-deploy-qt-tool.html

    --android-platform <platform>: Builds against the given android
       platform. By default, the highest available version will be
       used.

According to the documentation the highest available version will only be used when " --android-platform" is not given. But the behavior is different. Only "qtTargetSdkVersion" is set in the gradle.properties but "androidCompileSdkVersion" still use the highest available version when "--android-platform" is given.

This is a big problem because it should be possible to define a reproducible build that not depends on a system configuration. When we force platform 35 the build should be fail when it is not installed or can not be installed automatically. But in our case platform 34 is installed and will be used.

When we upgrade this dependency we would like to provide a CI node with 34 and 35 and the specific platform defined in every build should be used. So we can Update all builds and remove 34 after that.

Currently 35 is started to be used by all builds as soon as it is given and leads to a lot of fails.