dst might not be the same as src0 (since we don't define them to be
equals in the instruction-selector if AVX is enabled), so the minps
and maxps comparisons were incorrect.

I found this while trying to run some spec tests, so not adding any
unittest, eventually when the spec tests are enabled, this will be
covered.

Bug: v8:10835
Change-Id: I4fbc1dfe949e4137e057e73c0d5dfb8534a00b8f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2411484Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69953}