GitLab

* disable FAv2.1 if causal+cross attn
Signed-off-by: Charlene Yang <8636796+cyanguwa@users.noreply.github.com>

* remove comment and add warning
Signed-off-by: Charlene Yang <8636796+cyanguwa@users.noreply.github.com>

* include both causal and padding+causal
Signed-off-by: Charlene Yang <8636796+cyanguwa@users.noreply.github.com>

* add a space
Signed-off-by: Charlene Yang <8636796+cyanguwa@users.noreply.github.com>

---------
Signed-off-by: Charlene Yang <8636796+cyanguwa@users.noreply.github.com>