testsuite: Fix up c-c++-common/builtin-shufflevector-3.c testcase [PR101530]
This fixes:
FAIL: c-c++-common/builtin-shufflevector-3.c -Wc++-compat (test for excess errors)
Excess errors:
.../gcc/testsuite/c-c++-common/builtin-shufflevector-3.c:6:1: warning: SSE vector argument without SSE enabled changes the ABI [-Wpsabi]
2022-01-12 Jakub Jelinek <jakub@redhat.com>
PR middle-end/101530
* c-c++-common/builtin-shufflevector-3.c: Add -Wno-psabi to
dg-options.