xtensa: Fix up fatal_error message strings in xtensa-dynconfig.c [PR108890]

xtensa: Fix up fatal_error message strings in xtensa-dynconfig.c [PR108890]

The translation PR complains that these 4 messages from xtensa-dynconfig.c
are marked in po/gcc.pot as c-format (which doesn't allow %qs) while they
should be gcc-internal-format.

The problem is in the manual translation of the strings with _(),
that should be both unnecessary because fatal_error invokes _() on its
argument already, but also incorrect for the above reason, for
gcc-internal-format strings one should use G_("...") instead if really
needed.

The following patch drops those _("..."), tested by regenerating po/gcc.pot
to see they are now gcc-internal-format, but not really tested on xtensa
target.

2023-02-23  Jakub Jelinek  <jakub@redhat.com>

	PR translation/108890
	* config/xtensa/xtensa-dynconfig.c (xtensa_load_config): Drop _()s
	around fatal_error format strings.