package/syslog-ng: fix runtime in 32-bit

package/syslog-ng: fix runtime in 32-bit

When this line:
  unix-stream ("/dev/log");
is used as source in the .conf file and syslog-ng receives a message
(sent for test purposes using 'logger') the server throws the exception:
ERROR:lib/window-size-counter.c:76:window_size_counter_sub: assertion failed: (old_value >= value)

Even after replacing that config by:
  unix-dgram ("/dev/log");
when the server is stopped it throws the same exception.

Add one upstream patch to fix both issues.

Fixes:
https://gitlab.com/buildroot.org/buildroot/-/jobs/295369456

Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Cc: Chris Packham <judge.packham@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>