Bug 1836723 - Link against ntdll for rustc 1.70. r=firefox-build-system-reviewers,ahochheiden, a=dmeehan

Building with rustc 1.70 adds a dependency to the ntdll library through
libstd using NtCreateFile/NtWriteFile (it previously picked the symbols
at runtime).

Differential Revision: https://phabricator.services.mozilla.com/D180011