insns.dat: Fix a typo in a comment
insns.dat: Fix a typo in a comment

isnsn-iflags.pl not insns-iflag.pl.

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

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