iucode-tools: new package

iucode_tool is a program to manipulate Intel® X86 and X86-64 processor
microcode collections, and to use the kernel facilities to upgrade the
microcode on Intel system processors.
It was originally sent by Richard Braun <rbraun@sceen.net>

[Peter: drop 'sid' from upstream URL]
Signed-off-by: Maxime Hadjinlian <maxime.hadjinlian@gmail.com>
Cc: Richard Braun <rbraun@sceen.net>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>