libsepol: change to github location

The old location doesn't seem active any more. Even though this github URL
looks a bit odd, it is linked from
https://github.com/SELinuxProject/selinux/wiki/Releases

Also add a .hash file.

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

package/libsepol/libsepol.hash

@@ -0,0 +1,2 @@
+# From https://github.com/SELinuxProject/selinux/wiki/Releases
+sha256	290d17f583635a4a5d8a2141511272adf0571c4205cdea38b5a68df20d58a70b  libsepol-2.1.9.tar.gz

package/libsepol/libsepol.mk

@@ -5,7 +5,7 @@
 ################################################################################
 
 LIBSEPOL_VERSION = 2.1.9
-LIBSEPOL_SITE = http://userspace.selinuxproject.org/releases/20130423
+LIBSEPOL_SITE = https://raw.githubusercontent.com/wiki/SELinuxProject/selinux/files/releases/20130423
 LIBSEPOL_LICENSE = LGPLv2.1+
 LIBSEPOL_LICENSE_FILES = COPYING