tpm2_getekcertificate: add support to high range NV indexes #1853

Job	Run time
coverage-test	6m 15s
coverity-test	0s
build-test (ubuntu-20.04, gcc)	5m 48s
build-test (ubuntu-20.04, clang)	4m 53s
master-tss-build-test (gcc)	18m 2s
build-test (fedora-30, gcc)	5m 54s
master-tss-build-test (clang)	4m 53s
build-test (fedora-30, clang)	5m 17s
build-test (opensuse-leap, gcc)	6m 14s
build-test (opensuse-leap, clang)	5m 23s
build-test (fedora-32, gcc)	5m 56s
build-test (fedora-32, clang)	5m 6s
build-test (ubuntu-22.04, gcc)	11m 18s
build-test (ubuntu-22.04, clang)	10m 41s
	1h 35m 40s

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