target/s390x/mmu_helper: Simplify s390_cpu_virt_mem_rw() logic

In order to simplify the next commit, move the
trigger_access_exception() call after the address_space_rw()
calls. No logical change intended.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20251008141410.99865-2-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
1 file changed