Fix more xfails for scaled_dot_product_attention (#121032)
Followup to #120928. - should fix #120921 .
I missed one test in #120928 - test_dispatch_symbolic_meta_outplace_all_strides. This wasn't caught because #120921 was open at the time, disabling the test.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/121032
Approved by: https://github.com/drisspg
