Use arch of the analizer machine instead of the original one.

When creating the content of the ctu-dir the target architecture was
used to which compilation happened. If the analysis runs on a different
architecture (e.g. for debugging reasons) then the analyzer can't find
the necessary files of which the paths are named after the architecture.

libcodechecker/analyze/ctu_manager.py

@@ -10,6 +10,7 @@
 import glob
 import multiprocessing
 import os
+import platform
 import shutil
 import signal
 import sys
@@ -196,9 +197,7 @@ def collect_build_action(params):
             analyzer_environment = analyzer_env.get_check_env(
                 context.path_env_extra,
                 context.ld_lib_path_extra)
-            triple_arch = ctu_triple_arch.get_triple_arch(action, source,
-                                                          config,
-                                                          analyzer_environment)
+            triple_arch = platform.machine()
             if not config.ctu_in_memory:
                 generate_ast(triple_arch, action, source, config,
                              analyzer_environment)