perf tools: Add dummy functions for !HAVE_LZMA_SUPPORT

This allows us to use them without needing to ifdef the calling code.

Signed-off-by: Stephen Brennan <stephen.s.brennan@oracle.com>
Reviewed-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lore.kernel.org/r/20250307232206.2102440-2-stephen.s.brennan@oracle.com


Signed-off-by: Namhyung Kim <namhyung@kernel.org>