[tools/perf] Update code to reference py_utils.cloud_storage

tools/auto_bisect/fetch_build.py

Index: tools/auto_bisect/fetch_build.py
diff --git a/tools/auto_bisect/fetch_build.py b/tools/auto_bisect/fetch_build.py
index 27cd66866b822dbf16a56439d64e7d54d20b0322..321bc82e431edb23f1834fbe93ea201d3b20d913 100644
--- a/tools/auto_bisect/fetch_build.py
+++ b/tools/auto_bisect/fetch_build.py
@@ -22,12 +22,12 @@ import shutil
 import sys
 import zipfile
 
-_CATAPULT_BASE_PATH = os.path.abspath(os.path.join(
+_PY_UTILS_PATH = os.path.abspath(os.path.join(
     os.path.dirname(__file__), '..', '..', 'third_party', 'catapult',
-    'catapult_base'))
-if _CATAPULT_BASE_PATH not in sys.path:
-  sys.path.insert(1, _CATAPULT_BASE_PATH)
-from catapult_base import cloud_storage
+    'common', 'py_utils'))
+if _PY_UTILS_PATH not in sys.path:
+  sys.path.insert(1, _PY_UTILS_PATH)
+from py_utils import cloud_storage
 
 import bisect_utils