Update manylinux2010 policy with i686 symbol versions

Symbol versions for manylinux2010 were probably extracted on a x86_64 CentOS 6 using the scripts/calculate_symbol_versions.py

These are only a subset of allowed symbol versions. This commit updates symbol_versions to be the union of symbol versions found on x86_64 and i686 images.

Author: mayeut

auditwheel/policy/policy.json

@@ -38,7 +38,7 @@
                      "3.4.6", "3.4.7", "3.4.8", "3.4.9", "3.4.10", "3.4.11",
                      "3.4.12", "3.4.13"],
          "GCC": ["3.0", "3.3", "3.3.1", "3.4", "3.4.2", "3.4.4", "4.0.0",
-                 "4.2.0", "4.3.0"]
+                 "4.2.0", "4.3.0", "4.4.0"]
      },
      "lib_whitelist": [
          "libgcc_s.so.1",