Fix sm2 init failure. #1226

Job	Run time
basic_clang	4m 16s
basic_gcc	4m 14s
check_update	1m 1s
check-ansi	1m 55s
address_ub_sanitizer	6h 0m 16s
memory_sanitizer	3m 30s
minimal	2m 0s
no-deprecated	3m 57s
non-caching	6h 0m 16s
no-shared (ubuntu-latest)	3m 27s
ntls_address_ub_sanitizer	6h 0m 14s
no-shared (macos-latest)	5m 4s
ntls_memory_sanitizer	6h 0m 16s
threads_sanitizer	2m 44s
EC_POINTs_api_test	6h 0m 16s
buildtest	6m 48s
enable_non-default_options	3m 32s
external-test-pyca (1.51.0, 3.9)	1m 39s
fips_and_ktls	4m 18s
legacy	3m 41s
no-legacy	4m 29s
ntls-with-fips	7m 53s
ntls-without-sm234	6m 40s
out-of-source-and-install (ubuntu-latest)	4m 16s
out-of-source-and-install (macos-latest)	7m 6s
phe_test	35m 48s
smtc_and_ntls	14m 39s
symbol_prefix-test	7m 16s
sm2-threshold-test	6h 0m 15s
zkp-build-test	3m 14s
	1d 14h 25m 0s

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