[PATCH v2 20/37] kasan: rename tags.c to tags_sw.c

[Alexander Potapenko]

> Also, as we are going to have CONFIG_KASAN_{SW,HW}_TAGS, won't it be
> better to call the files {report_,}tags_{sw,hw}.c ?

Sorry for the typo, I meant "{report_,}{sw,hw}_tags.c, mirroring the
config names.