android build: pin hashes of p4a recipes

contrib/android/p4a_recipes/python3/__init__.py

@@ -0,0 +1,18 @@
+import os
+
+from pythonforandroid.recipes.python3 import Python3Recipe
+from pythonforandroid.util import load_source
+
+util = load_source('util', os.path.join(os.path.dirname(os.path.dirname(__file__)), 'util.py'))
+
+
+assert Python3Recipe.depends == ['hostpython3', 'sqlite3', 'openssl', 'libffi']
+assert Python3Recipe.python_depends == []
+
+
+class Python3RecipePinned(util.InheritedRecipeMixin, Python3Recipe):
+    version = "3.8.8"
+    sha512sum = "1c6742cdc92ba6d3c03c63fd025bc348462517a503343685a42e22838aedc94ab2e438f1d1623b91ca1be5f39f327d76385d66b785ff93f0f3737b9870e9a003"
+
+
+recipe = Python3RecipePinned()