intel/fs: Use a pair of 1-wide MOVs instead of SEL for any/all

For some reason, the any/all predicates don't work properly with SIMD32.
In particular, it appears that a SEL with a QtrCtrl of 2H doesn't read
the correct subset of the flag register and you end up getting garbage
in the second half.  Work around this by using a pair of 1-wide MOVs and
scattering the result.  This fixes the any/all instructions for SIMD32.

Reviewed-by: Matt Turner <mattst88@gmail.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 1b8ef49f)