sysmocom-backup-data: do not enable the restore service automatically

This is needed for an upcoming change which will restore the backup from
the initramfs.

Signed-off-by: Jan Luebbe <jluebbe@debian.org>

recipes-apps/sysmocom-backup-data/sysmocom-backup-data_1.0.bb

@@ -1,7 +1,7 @@
 DESCRIPTION = "sysmocom config backup and restore scripts"
 LICENSE = "GPLv3+"
 LIC_FILES_CHKSUM = "file://${COREBASE}/meta/COPYING.MIT;md5=3da9cfbcb788c80a0384361b4de20420"
-PR = "r12"
+PR = "r13"
 
 SRC_URI = " \
 	file://sysmocom-backup-data \
@@ -26,4 +26,4 @@ do_install() {
 
 SYSTEMD_PACKAGES = "${PN}"
 SYSTEMD_SERVICE_${PN} = "data.mount sysmocom-restore.service"
-SYSTEMD_AUTO_ENABLE_${PN} = "enable"
+SYSTEMD_AUTO_ENABLE_${PN} = "disable"