package/libev: fix download URL

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/libev/libev.mk

@@ -5,7 +5,7 @@
 ################################################################################
 
 LIBEV_VERSION = 4.22
-LIBEV_SITE = http://dist.schmorp.de/libev
+LIBEV_SITE = http://dist.schmorp.de/libev/Attic
 LIBEV_INSTALL_STAGING = YES
 LIBEV_LICENSE = BSD-2-Clause or GPL-2.0+
 LIBEV_LICENSE_FILES = LICENSE