Reset to sdl2 for fontconfig

Author: misl6

pythonforandroid/recipes/fontconfig/__init__.py

@@ -8,7 +8,7 @@
 class FontconfigRecipe(BootstrapNDKRecipe):
     version = "really_old"
     url = 'https://github.com/vault/fontconfig/archive/androidbuild.zip'
-    depends = ['sdlx']
+    depends = ['sdl2']
     dir_name = 'fontconfig'
 
     def build_arch(self, arch):