FAPI: Use a second session for parameter encryption 3.2.x. #1709

Job	Run time
scanbuild	15m 33s
coverity-test	0s
build-test (ubuntu-18.04, gcc)	8m 7s
build-test (ubuntu-18.04, clang)	8m 11s
build-test (ubuntu-20.04, gcc)	6m 20s
build-test (ubuntu-20.04, clang)	5m 23s
build-test (fedora-32, gcc)	7m 37s
build-test (fedora-32, clang)	7m 46s
build-test (opensuse-leap, gcc)	8m 31s
build-test (opensuse-leap, clang)	5m 41s
test-coverage	8m 4s
test-fuzz	3m 20s
test-mbedtls	3m 49s
test-tcti-config	15m 11s
	1h 43m 33s

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