arch-x86: Override make(Read|Write) instead of (read|write)_code.
arch-x86: Override make(Read|Write) instead of (read|write)_code.

Change-Id: Iab077f58e19aa6bfeed555caa31a4c8b3d261059
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/49741
Tested-by: kokoro <2ac7b1f3fa578934c95181d4272be0d3bca00121@google.com>
Reviewed-by: Gabe Black <d3e8afea784ab4a50a2dbf9149d2eaa8478e1cbc@gmail.com>
Maintainer: Gabe Black <d3e8afea784ab4a50a2dbf9149d2eaa8478e1cbc@gmail.com>

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