[Bug target/121998] --disable-multilib doesn't work if provision for multilib has been made.

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121998

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #1)
> >For embedded work I require simplicity and therefor a single architecture. \lib32 and \lib64 create a level of complexity I do not want. 
> 
> You need a new target for that. aarch64-linux-gnu will always use lib64.

s/target/target triplet/