redis: bump to version 3.2.8

It fixes a regression in the 3.2.7 security release that can cause server
deadlocks.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
(cherry picked from commit f4cb8f2d4a9805ccdd084f16a25990e88da463c1)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/redis/redis.hash

@@ -1,4 +1,4 @@
 # From https://github.com/antirez/redis-hashes/blob/master/README
-sha1 6889af053020cd72ebb16805ead0ce9b3a69a9ef  redis-3.2.7.tar.gz
+sha1 6780d1abb66f33a97aad0edbe020403d0a15b67f  redis-3.2.8.tar.gz
 # Calculated based on the hash above
-sha256 bf9df3e5374bfe7bfc3386380f9df13d94990011504ef07632b3609bb2836fa9  redis-3.2.7.tar.gz
+sha256 61b373c23d18e6cc752a69d5ab7f676c6216dc2853e46750a8c4ed791d68482c  redis-3.2.8.tar.gz

package/redis/redis.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-REDIS_VERSION = 3.2.7
+REDIS_VERSION = 3.2.8
 REDIS_SITE = http://download.redis.io/releases
 REDIS_LICENSE = BSD-3c (core); MIT and BSD family licenses (Bundled components)
 REDIS_LICENSE_FILES = COPYING