qemu-replies-tool: Dump 'qom-list-types'

qemu-replies-tool: Dump 'qom-list-types'

The order of entries in 'qom-list-types' sometimes changes arbitrarily.

The --dump-qom-list-types produces a stable order and drops the for
libvirt unneeded 'parent' information.

Sample output:

$ ./scripts/qemu-replies-tool.py tests/qemucapabilitiesdata/caps_9.0.0_x86_64.replies --dump-qom-list-types
(qom) 486-v1-x86_64-cpu
(qom) 486-x86_64-cpu
(qom) AC97
(qom) AMDVI-PCI
(qom) Broadwell-IBRS-x86_64-cpu
(qom) Broadwell-noTSX-IBRS-x86_64-cpu
(qom) Broadwell-noTSX-x86_64-cpu
(qom) Broadwell-v1-x86_64-cpu
(qom) Broadwell-v2-x86_64-cpu
(qom) Broadwell-v3-x86_64-cpu

[...]

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>