insns.dat: use the officially documented UD0 and UD1 forms
insns.dat: use the officially documented UD0 and UD1 forms

The UD0 and UD1 opcodes are now officially documented, with UD1
officially documented to take a modr/m.  Still permit the "UD2B" and
argument-less aliases, but not as preferred.

Signed-off-by: H. Peter Anvin <8a453bad9912ffe59bc0f0b8abe03df9be19379e@zytor.com>

techkey/nasm,techkey/nasm,techkey/nasm,techkey/nasm,techkey/nasm