intel: Reformat intel_decode.c from intel-gpu-tools using Lindent.

We generally go for kernel style in this tree, and this 4-space indent
stuff was bothering me.  The new results have some ugly bits, but
they're in places where we desperately want to be using helper
functions anyway.

Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Eugeni Dodonov <eugeni@dodonov.net>