gluon-autoupdater: start/stop urngd instead of haveged

OpenWRT 19.07 enables urngd by default, so haveged is redundant.

package/gluon-autoupdater/files/usr/lib/autoupdater/abort.d/90gluon-autoupdater

@@ -4,6 +4,6 @@
 
 
 start_enabled cron
-start_enabled haveged
+start_enabled urngd
 start_enabled micrond
 start_enabled sysntpd

package/gluon-autoupdater/files/usr/lib/autoupdater/download.d/10gluon-autoupdater

@@ -4,6 +4,6 @@
 
 
 stop cron
-stop haveged
+stop urngd
 stop micrond
 stop sysntpd