FAPI: Fix intermediate self signed certificate. #551

Job	Run time
test-tcti-config	14m 4s
scanbuild	6m 38s
test-coverage	5m 6s
test-fuzz	2m 31s
build-test (ubuntu-18.04, gcc)	4m 40s
test-mbedtls (ubuntu-20.04)	3m 1s
build-test (ubuntu-18.04, clang)	5m 2s
test-mbedtls (ubuntu-22.04-mbedtls-3.1)	2m 42s
test-no-crypto-build	1m 19s
build-test (ubuntu-20.04, gcc)	4m 57s
build-test (ubuntu-20.04, clang)	4m 44s
build-test (fedora-32, gcc)	5m 13s
coverity-test	0s
build-test (fedora-32, clang)	5m 23s
build-test (opensuse-leap, gcc)	4m 59s
build-test (opensuse-leap, clang)	4m 54s
build-test (ubuntu-22.04, gcc)	5m 38s
build-test (ubuntu-22.04, clang)	5m 37s
build-test (alpine-3.15, gcc)	4m 15s
build-test (alpine-3.15, clang)	5m 6s
	1h 35m 49s

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