qapi: Remove hardcoded tabs

There are some stray hardcoded tabs in some of our json files;
remove them.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20200213175647.17628-11-peter.maydell@linaro.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2 files changed