Ensure that deepfreeze.o is included in the distribution (#311)

Author: ntamas

cpython-unix/build-cpython.sh

@@ -868,7 +868,7 @@ ${BUILD_PYTHON} ${ROOT}/fix_shebangs.py ${ROOT}/out/python/install
 
 # Also copy object files so they can be linked in a custom manner by
 # downstream consumers.
-OBJECT_DIRS="Objects Parser Parser/pegen Programs Python"
+OBJECT_DIRS="Objects Parser Parser/pegen Programs Python Python/deepfreeze"
 OBJECT_DIRS="${OBJECT_DIRS} Modules"
 for ext in _blake2 cjkcodecs _ctypes _ctypes/darwin _decimal _expat _hacl _io _multiprocessing _sha3 _sqlite _sre _testinternalcapi _xxtestfuzz ; do
     OBJECT_DIRS="${OBJECT_DIRS} Modules/${ext}"