sim-se: Ignore unimplemented system call
sim-se: Ignore unimplemented system call

System call sched_setaffinity causes crashes when running programs
that use ROCm. Ignoring the system call allows for the programs
to run to completion.

Change-Id: I27c767ef81091789e228d47f2bb5f6fa18f11539
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/30154
Reviewed-by: Brandon Potter <0c4047814a967fe28855a3d9d73d9b4959444c57@amd.com>
Reviewed-by: Matt Sinclair <d2406197fb1bedd1e23c70c50c510ff0e9ab0f5b@gmail.com>
Maintainer: Brandon Potter <0c4047814a967fe28855a3d9d73d9b4959444c57@amd.com>
Tested-by: kokoro <2ac7b1f3fa578934c95181d4272be0d3bca00121@google.com>

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