migration: traces
Adds trace messages to migration path. Patches have been on list for a
while, and have been reviewed by Juan.
# gpg: Signature made Thu 27 Mar 2014 10:44:21 GMT using RSA key ID
854083B6
# gpg: Can't check signature: public key not found
* remotes/amit-migration/tags/for_upstream:
migration: add more traces
util: add qemu_ether_ntoa
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>