Changeset 11004:e6aa2b4cfbef
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mem: Cleanup packet attributes and rely on command type

This patch takes one step further in cleaning up the use of packet
command attributes, and shifts away from using attributes to
distinguish a single command. The commands affected are software
prefetch requests and flush requests. There is really no use for
attributes, as no other request packets share this property.

Instead of looking at the attribute, the locations that identified
these packets now check for the actual command.