Certain micro-op sequences were only setting isLastMicroop flags, and did not set the isFirstMicroop flag. This adds the missing setFirstMicroop() calls. This fixes tracing issues (e.g. Tarmac) of certain micro-opped instruction sequences such as LD1. Change-Id: I7de3ee2759e2b4e1065a7cbac4186f11227d84be Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/30034 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Maintainer: Andreas Sandberg <andreas.sandberg@arm.com> Tested-by: kokoro <noreply+kokoro@google.com>