Fix a typo of log message in _poll_unconfirmed_resizes

That is just a negligible typo issue, so I have not filed a bug on LP.
The typo log message is like "notRESIZED/None", and should be
"not RESIZED/None".

Change-Id: I6137b477185419b1e638be3ed5310644aff96d76
Merge "Fix a typo of log message in _poll_unconfirmed_resizes"