package/gamin: fetch from sources.buildroot.net

Fixes https://autobuild.buildroot.org/results/ef2/ef2b87da32c81fa635f795a99f352a18f535ec25/

Upstream is no longer accessible, so use s.b.n instead.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/gamin/gamin.mk

@@ -5,7 +5,8 @@
 ################################################################################
 
 GAMIN_VERSION = 0.1.10
-GAMIN_SITE = http://www.gnome.org/~veillard/gamin/sources
+# upstream (http://www.gnome.org/~veillard/gamin/sources) dead
+GAMIN_SITE = http://sources.buildroot.net/gamin
 GAMIN_AUTORECONF = YES
 GAMIN_INSTALL_STAGING = YES
 GAMIN_LICENSE = LGPL-2.0+