m4: fix test ld version script. #2244

Job	Run time
coverity-test	0s
test-coverage	5m 38s
scanbuild	14m 23s
build-test (ubuntu-20.04, gcc)	21m 8s
test-fuzz	2m 31s
build-test (ubuntu-20.04, clang)	21m 5s
test-mbedtls (ubuntu-20.04)	3m 21s
build-test (fedora-32, gcc)	4m 33s
test-no-crypto-build	1m 39s
test-mbedtls (ubuntu-22.04-mbedtls-3.1)	3m 8s
build-test (fedora-32, clang)	12m 51s
test-tcti-config	21m 48s
build-test (opensuse-leap, gcc)	4m 25s
build-test (opensuse-leap, clang)	9m 19s
build-test (ubuntu-22.04, gcc)	21m 44s
build-test (ubuntu-22.04, clang)	4m 31s
build-test (alpine-3.15, gcc)	10m 5s
build-test (alpine-3.15, clang)	10m 55s
	2h 53m 4s

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