The s0abs bit in the encoing of fred instruction is wrongly set to the
status of .neg modifier instead of .abs modifier.
Fix this copy-n-paste error.
Fixes GLCTS tests when running on top of Zink:
dEQP-GLES2.functional.shaders.random.trigonometric.vertex.4
dEQP-GLES2.functional.shaders.random.trigonometric.vertex.45
dEQP-GLES2.functional.shaders.random.trigonometric.fragment.4
dEQP-GLES2.functional.shaders.random.trigonometric.fragment.45
Fixes: 8ec174b3f9 ("pco: add support for various selection, complex, trig ops")
Signed-off-by: Icenowy Zheng <zhengxingda@iscas.ac.cn>
Reviewed-by: Simon Perretta <simon.perretta@imgtec.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40611>