[LTP] [PATCH] travis: Temporarily disable fedora:lastest

[Petr Vorel]

Hi Xu,

> I also test fedora:32 fedora:33 in my ltp fork[1], they are all pass.
> fedora:31 and fedora:latest are failed.

> @Petr, You often modify travis code, if you have some advise, please let me
> know.
Thank you for taking care.

I hoped it'd get fixed soon, but it haven't so far :(
Generally I'd prefer to use rawhide (which is 33, see [2]), but until it's fixed
let's use 32 (upcomming release).

Please send patch today, or I'll commit it myself tonight.

Kind regards,
Petr

> [1]https://github.com/xuyang0410/ltp/commits/settimeofday_builderror
[2] https://hub.docker.com/_/fedora