dbus: bump version

Regression fix for CVE-2014-3636, see release announcement:
http://lists.freedesktop.org/archives/dbus/2014-November/016430.html

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

package/dbus/dbus.hash

@@ -1,2 +1,2 @@
-# Locally calculated after checking pgp signature
-sha256	10bf87fdb68815edd01d53885101dbcdd80dacad7198912cca61a4fa22dfaf8e	dbus-1.8.10.tar.gz
+# Locally calculated
+sha256	c91428f28d2925ba32d34ffc824bfcf4d40d5e1e67befc4bcf2202f0a862501e  dbus-1.8.12.tar.gz

package/dbus/dbus.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-DBUS_VERSION = 1.8.10
+DBUS_VERSION = 1.8.12
 DBUS_SITE = http://dbus.freedesktop.org/releases/dbus
 DBUS_LICENSE = AFLv2.1 GPLv2+
 DBUS_LICENSE_FILES = COPYING