Do not suggest alternate svg sizes bigger than $wgMaxSVGSize on img pg

Do not suggest alternate svg sizes bigger than $wgMaxSVGSize on img pg

Suggesting a size bigger than the max svg size, will simply result
in a smaller rendering than the user has been lead to believe they
would recieve.

Additionally fix wrong argument order to $this->getThumbSizes
which was causing the nominal size for an SVG to not be suggested
as an alternate size on the image page.

See some of the comments T106263 (However, that bug is not about
this issue).

Change-Id: Ia63ddd6e89725f8e7979687310c3b6819da0cbbc