[PATCH] ARM: fix literal load with positive offset encoding

[Tim Northover]

Hi Amaury,

> When using a positive offset, literal loads where encoded
> as if it was negative, because:

Looks good, except that you seem to change just the formatting on some
existing tests. I agree your formatting is better, but probably not by
enough to justify polluting revision history on those lines. Could you
commit a version leaving them alone?

Cheers.

Tim.