fixed build issue

Author: GvozdevLeonid

android/python_hackrf/__init__.py

@@ -32,5 +32,9 @@ def get_recipe_env(self, arch: Arch, **kwargs) -> dict[str, Any]:
 
         return env
 
+    def build_arch(self, arch: Arch) -> None:
+        super().build_arch(arch)
+        self.restore_hostpython_prerequisites(['cython'])
+
 
 recipe = PythonHackrfRecipe()