Move some AVX_OP into shared macro-assembler, for reuse by ia32 in
future patches.

Movlhps is also unused in x64, so remove it.

Drive-by cleanup to use macro assembler helper Move to move 128-bit
const into a XMMRegister.

The change in liftoff-assembler-x64 is required because now the
macro-assembler functions are defined in the base class, so even though
we can use &TurboAssembler::Pcmpeqd to refer to that member function,
it actually resolves to &SharedTurboAssembler::Pcmpeqd.

Bug: v8:11589
Change-Id: Ie8f6a4dfd95b41192936f6e6be48c683042acec4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3150138Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76772}