gdb/debuginfod-support.c: Always display debuginfod errors

Errors encountered when downloading files from debuginfod servers
are not displayed if debuginfod verbosity is set to 0 (via
'set debuginfod verbose 0').

Tom recommended that these errors always be displayed, regardless
of the verbosity setting [1]. Fix this.

[1] https://sourceware.org/pipermail/gdb-patches/2022-March/186350.html
1 file changed