Change to Opti-Slim
pngquant: Skip if Larger

We shouldn't be making any files larger.  This is a check against that!

Note: This requires pngquant version 2.1.0 or newer.  I recommend installing the upstream version from here: https://github.com/pornel/pngquant/commits/master  simply clone ./configure and make.

Signed-off-by: Chet Kener <Cl3Kener@gmail.com>
Change-Id: I313efb3ccd52e26c3e7e0951579e23228363417d
Revert "pngquant: Skip if Larger"

This reverts commit 7f6c7ad84c66b7fcd218e173972e4f99030dc7e4.

This option is bad because it appears that it skips anything unless change is greater than 1 kb less on the png.  Seeing as some of these pngs aren't even 1 kb this commit is bad.

Sorry to those that noticed an increase of 3 or 4 MB in their ROMs....

Change-Id: I313efb3ccd52e26b3a7e0951579e23228363417d