Bug 1837122 - Fix typo introduced in bug 1834446....

Bug 1837122 - Fix typo introduced in bug 1834446. r=firefox-build-system-reviewers,sergesanspaille, a=dmeehan

Differential Revision: https://phabricator.services.mozilla.com/D180174

moz.configure

@@ -717,7 +717,7 @@ check_prog(
 
 check_prog(
     "INSTALL_NAME_TOOL",
-    plain_llvm_or_prefixed("llvm-install-name-tool"),
+    plain_llvm_or_prefixed("install-name-tool"),
     when=compile_environment & target_is_darwin & js_standalone,
     paths=clang_search_path,
 )