x86/traps: Clean up error exception handler definitions
x86/traps: Clean up error exception handler definitions

So I was reading the exception handler generation code and got a real
headache looking at the unstructured mess that our DO_ERROR*()
generation code is today.

Make it more readable.

Cc: Thomas Gleixner <00e4cf8f46a57000a44449bf9dd8cbbcc209fd2a@linutronix.de>
Cc: "H. Peter Anvin" <8a453bad9912ffe59bc0f0b8abe03df9be19379e@zytor.com>
Link: f27375b21cde8e8229335cf5049184eca8b42c1a@git.kernel.org
Signed-off-by: Ingo Molnar <9dbbbf0688fedc85ad4da37637f1a64b8c718ee2@kernel.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs