Fix more aarch64-linux stuff. Take 2 #1772

Job	Run time
nix-build	37s
unit-tests	11s
multi-target	15s
runghc	9s
cabal-doExactConfig	13s
cabal	13s
shellFor-hoogle	10s
shellFor-multiple-package	13s
shellFor-single-package	16s
tests-benchmarks	11s
build-extra-hackages	10s
check-materialization-concurrency	23s
closure-size	7s
docs	23s
hix	30s
hydra-ifdLevel-0-and-1	17s
hydra-ifdLevel-2	11s
hydra-ifdLevel-3-and-ghc-8-10	11s
hydra-ifdLevel-3-and-ghc-9-2	11s
hydra-ifdLevel-3-and-not-ghc-8-10-or-9-2	11s
maintainer-scripts	10s
plan-extra-hackages	8s
shellFor-not-depends	14s
update-docs	8s
check-path-support	8s
haskell-nix-roots-do-not-require-IFDs	9s
hydra-without-remote-builders	10s
hix-cabal	13s
nix-tools	54s
	7m 16s

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