m4: fix test ld version script. #778

Job	Run time
test-mbedtls (ubuntu-20.04)	2m 47s
test-mbedtls (ubuntu-22.04-mbedtls-3.1)	2m 39s
scanbuild	6m 30s
build-test (ubuntu-20.04, gcc)	4m 27s
test-coverage	5m 11s
build-test (ubuntu-20.04, clang)	4m 14s
test-fuzz	2m 29s
test-no-crypto-build	1m 16s
build-test (fedora-32, gcc)	4m 41s
build-test (fedora-32, clang)	5m 5s
test-tcti-config	13m 58s
build-test (opensuse-leap, gcc)	4m 35s
coverity-test	0s
build-test (opensuse-leap, clang)	4m 37s
build-test (ubuntu-22.04, gcc)	4m 51s
build-test (ubuntu-22.04, clang)	4m 44s
build-test (alpine-3.15, gcc)	4m 4s
build-test (alpine-3.15, clang)	4m 38s
	1h 20m 46s

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