testsuite: Fix two pastos

As mentioned in
https://sourceware.org/pipermail/libc-alpha/2026-August/179946.html
there are two spots which use unnecessarily larger _BitInt types
on the rhs of comparisons.

This patch fixes it.

2026-08-24  Jakub Jelinek  <jakub@redhat.com>

	* gcc.dg/builtin-stdc-bit-1.c (main): Fix two pastos.

(cherry picked from commit 85a3d553207ae1dddc51cdcbdc036c9e6726f8ba)
1 file changed