Fix sceSasSetPause() error code, update default SAS values

Based on dumping the SasCore struct and tests.

`sceSasSetPause(&sasCore, -1, 0)` is completely valid, and should not return any error.  We just had an infinite loop.  Mimana still works.

Also `sceSasRevVON(&sasCore, 2, 2)` is the same as 0, since it seems to only check the lsb.  We don't use it yet anyway, but might as well fix it since it's easy.

-[Unknown]