util: Update GCN Dockerfile for ROCm 4

This now installs ROCm 4 from source instead of ROCm 1.6.

Change-Id: I380ca06e93d48475e93d18f69eb97756186772ab
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/46239
Reviewed-by: Matthew Poremba <matthew.poremba@amd.com>
Reviewed-by: Matt Sinclair <mattdsinclair@gmail.com>
Maintainer: Matt Sinclair <mattdsinclair@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
1 file changed