Add 'g' (guest) for VM-Entry and 'h' (host) for VM-Exit.

Fixes: c025d46c ("perf script: Add branch types for VM-Entry and VM-Exit")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lore.kernel.org/lkml/20210521175127.27264-1-adrian.hunter@intel.comSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>