xinput-calibrator: Fix service file to require display-manager.service

The xinput-calibrator.service had a requires to xserver-nodm.service
but in fact it ought to wait by any display-manager to be initialized.
We fix it changing the require to display-manager.service.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Eric Bénard <eric@eukrea.com>

meta-systemd/meta-oe/recipes-graphics/xinput-calibrator/xinput-calibrator/xinput-calibrator.service

@@ -1,8 +1,8 @@
 [Unit]
 Description=Loads xinput calibration data
 ConditionPathExists=/etc/pointercal.xinput
-Requires=xserver-nodm.service
-After=xserver-nodm.service
+Requires=display-manager.service
+After=display-manager.service
 
 [Service]
 ExecStart=/usr/bin/xinput_calibrator_once.sh

meta-systemd/meta-oe/recipes-graphics/xinput-calibrator/xinput-calibrator_git.bbappend

@@ -1,6 +1,6 @@
 FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
 
-PRINC := "${@int(PRINC) + 1}"
+PRINC := "${@int(PRINC) + 2}"
 
 inherit systemd