[PATCH v4] add u64 number parser

[J Freyensee]

On Sun, 2016-09-25 at 09:14 -0700, James Smart wrote:
> add u64 number parser
> 
> Reverted back to version 2 of the patch.  This adds the interface
> using existing logic. Comments from the prior reviewers to move to
> kasprintf were rejected by Linus.
> 
> Signed-off-by: James Smart <james.smart at broadcom.com>

Acked-by: Jay Freyensee <james_p_freyensee at linux.intel.com>