php-memcached: add hash file

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/php-memcached/php-memcached.hash

@@ -0,0 +1,2 @@
+# Locally calculated
+sha256	17b9600f6d4c807f23a3f5c45fcd8775ca2e61d6eda70370af2bef4c6e159f58	memcached-2.2.0.tgz