Crash on Android when Qt is built as a static library

If Qt is built as a static library, Android application cannot load a shared library linked against static Qt.

Steps to reproduce:
1. Build Qt as a static library.
2. Build a shared library linked against static Qt.
3. Load previously build shared library from an Android application.

Expected Result:
The shared library loads successfully.

Actual Result:
The application crashes with the following error:
Cannot load library: soinfo_relocate(linker.cpp:975): cannot locate symbol "__clear_cache" referenced by "libtestandroid.so"

References:
1. fix_crash_when_using_static_qt.patch - a patch that fixes the bug on Android. It replaces __clear_cache with cacheflush, that should be used on Android. But I'm not sure that it's a valid change for every ARM-Linux. Maybe it's necessary to handle Android separately from ARM-Linux.