Fix sceCtrl analog range for all input devices.

It should map (-1.0... 0.0... 1.0) to (0... 128... 255.)  However, it was instead being mapped to (1... 128... 255.)  Close, but not good enough.  This was causing games to not respect analog movement if they checked for 100%.

Fixes #2363.  Maybe this is dependent on the rounding mode, though...

-[Unknown]