debian/control: adjust qemu binfmt dependencies (#1124777)

Michael Tokarevrequested to merge
mjt/freedom-maker:adjust-binfmt-deps into main

qemu-user-static package has been reorganized, now it is qemu-user (for actual binaries) and qemu-user-binfmt (for automatic binfmt_misc registration). binfmt-support is not used by qemu anymore, but systemd (systemd-binfmt). Adjust dependencies accordingly.

Closes: #1124777

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