[Bug target/97903] [ARM NEON] Missed optimization in lowering test operation

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97903

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
.VCONDEQ (aka vcondeq) should be that, no?  Just special case NE/EQ against
zero?