memtester: add hash

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/memtester/memtester.hash

@@ -0,0 +1,2 @@
+# Locally computed
+sha256	f9dfe2fd737c38fad6535bbab327da9a21f7ce4ea6f18c7b3339adef6bf5fd88	memtester-4.3.0.tar.gz