tools: owners: reduce notify spam from Jenkins

By default, the Gerrit 'reviewers' API will notify everyone of
the change to add a new reviewer.  When adding reviewers automatically
from Jenkins this can cause quite a bit of spam.  Adjust the 'notify'
fields of the API call so that only the newly-added reviewer is
notified.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: Ib992284918145a31c9ff749737b3ae09f4d5ef0e
1 file changed