[Buildroot] [PATCH] package/expat: security bump to version 2.2.7

[Arnout Vandecappelle]

On 28/06/2019 15:26, Peter Korsgaard wrote:
> Fixes the following security vulnerabilites:
> 
> CVE-2018-20843: In libexpat in Expat before 2.2.7, XML input including XML
> names that contain a large number of colons could make the XML parser
> consume a high amount of RAM and CPU resources while processing (enough to
> be usable for denial-of-service attacks).
> 
> Signed-off-by: Peter Korsgaard <peter at korsgaard.com>

 Applied to master, thanks.

 Regards,
 Arnout