Adds Memory Speed to fw_dut_info.go

BUG=b:326315770
TEST=manual (go run fw_dut_info.go $HOST)

Change-Id: I4e35d8bf661a68887528b3e331d7fda109bab347
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crostestutils/+/5324247
Reviewed-by: Andrew Luo <aluo@chromium.org>
Commit-Queue: Sean Carpenter <seancarpenter@google.com>
Tested-by: Sean Carpenter <seancarpenter@google.com>
1 file changed