AIX: Default SANITIZER_DISABLE_SYMBOLIZER_PATH_SEARCH to ON (#416)

llvm/llvm-project#129012 added a new CMake flag. This flag is used by
IBM's downstream builds.

This patch sets the flag on the community buildbots (Clang and Flang)
for AIX to ensure upstream coverage and visibility.

Author: hubert-reinterpretcast

buildbot/osuosl/master/config/builders.py

@@ -780,7 +780,8 @@
                         "-DPython3_EXECUTABLE:FILEPATH=python3",
                         "-DLLVM_ENABLE_ZLIB=OFF", "-DLLVM_APPEND_VC_REV=OFF",
                         "-DLLVM_PARALLEL_LINK_JOBS=2",
-                        "-DLLVM_ENABLE_WERROR=ON"]),
+                        "-DLLVM_ENABLE_WERROR=ON",
+                        "-DSANITIZER_DISABLE_SYMBOLIZER_PATH_SEARCH:BOOL=ON"]),
     'env' : {'OBJECT_MODE': '64'}},
 
     {'name' : "clang-s390x-linux",
@@ -2631,7 +2632,7 @@
                         "-DPython3_EXECUTABLE:FILEPATH=python3",
                         "-DLLVM_ENABLE_ZLIB=OFF", "-DLLVM_APPEND_VC_REV=OFF",
                         "-DLLVM_PARALLEL_LINK_JOBS=2",
-
+                        "-DSANITIZER_DISABLE_SYMBOLIZER_PATH_SEARCH:BOOL=ON",
                     ],
                     env={
                         'CC': 'clang',