modem-manager: bump to version 1.6.4

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

package/modem-manager/modem-manager.hash

@@ -1,2 +1,2 @@
 # Locally computed
-sha256  e4544398d9c166f8e13fe7c97149f262ad1fb48af980e0d4f9c34013920c6393  ModemManager-1.6.2.tar.xz
+sha256  cdd5b4cb1e4d7643643a28ccbfc4bb354bfa9cb89a77ea160ebdf7926171c668  ModemManager-1.6.4.tar.xz

package/modem-manager/modem-manager.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-MODEM_MANAGER_VERSION = 1.6.2
+MODEM_MANAGER_VERSION = 1.6.4
 MODEM_MANAGER_SOURCE = ModemManager-$(MODEM_MANAGER_VERSION).tar.xz
 MODEM_MANAGER_SITE = http://www.freedesktop.org/software/ModemManager
 MODEM_MANAGER_LICENSE = GPLv2+ (programs, plugins), LGPLv2+ (libmm-glib)