The instruction selector for these two operations use VisitRROFloat
which uses and operand for the second input (operand1). The codegen
assumes it is a register, which is wrong. This fixes it to be an
operand.

Change-Id: Ic27ba2c0520ba6e15963b01af7593411ec2a34e9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1958052Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#65533}