Qt 5.14.0 uses ANDROID_ABI  in generated cmake files. This requires android toolchain file of NDK.
Also it should be possible to use builtin support in CMake  instead of NDK toolchain file. CMake uses CMAKE_ANDROID_ARCH_ABI for the same usage.
Our work around in our cmake script:
It would be nice if the create_make.prf could check for CMAKE_ANDROID_ARCH_ABI variable, too.