FAPI: Fix intermediate self signed certificate. #1832

Job	Run time
scanbuild	6m 23s
build-test (ubuntu-18.04, gcc)	4m 47s
test-fuzz	2m 34s
test-coverage	5m 3s
build-test (ubuntu-18.04, clang)	5m 0s
test-mbedtls (ubuntu-20.04)	2m 47s
build-test (ubuntu-20.04, gcc)	5m 5s
test-no-crypto-build	1m 20s
test-mbedtls (ubuntu-22.04-mbedtls-3.1)	2m 42s
build-test (ubuntu-20.04, clang)	4m 48s
build-test (fedora-32, gcc)	5m 18s
build-test (fedora-32, clang)	5m 23s
coverity-test	0s
test-tcti-config	13m 43s
build-test (opensuse-leap, gcc)	4m 55s
build-test (opensuse-leap, clang)	4m 56s
build-test (ubuntu-22.04, gcc)	5m 58s
build-test (ubuntu-22.04, clang)	5m 49s
build-test (alpine-3.15, gcc)	4m 14s
build-test (alpine-3.15, clang)	5m 16s
	1h 36m 1s

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