[Buildroot] [PATCH 2/2] package/stunnel: security bump to version 5.53

[Peter Korsgaard]

>>>>> "Fabrice" == Fabrice Fontaine <fontaine.fabrice at gmail.com> writes:

 > - Update hash of COPYING (update in year:
 >   https://github.com/mtrojnar/stunnel/commit/bb693862a3497bde442ffa37e7c20f1e2f5534ea)
 > - Include a Security bugfix released in version 5.48: Fixed requesting
 >   client certificate when specified as a global option.

 > Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>

Committed to 2019.02.x, thanks.

-- 
Bye, Peter Korsgaard