tags: Add "Based-on" as recognized tags
tags: Add "Based-on" as recognized tags

In addition, add "Reviewed-by" as built in tags as well.

Signed-off-by: Fam Zheng <df9fd617995bad07eac70e27aa3fe5069270e3bd@redhat.com>

patchew-project/patchew,famz/patchew,patchew-project/patchew,famz/patchew,patchew-project/patchew,famz/patchew,patchew-project/patchew,famz/patchew