Merge pull request #29955 from poettering/repart-seal-key

repart: add --tpm2-seal-key= support, matching the recently added support cryptenroll has

diff --cc src/partition/repart.c
Simple merge

diff --cc src/shared/tpm2-util.c
Simple merge

diff --cc src/shared/tpm2-util.h
Simple merge

diff --cc test/units/testsuite-70.cryptsetup.sh
Simple merge