SYSTEMD: use generic bb file

Change-Id: Ie8f2934be96790b7b1e4cd94e8141421c64a480e

recipes-core/systemd/systemd-conf_%.bbappend

@@ -3,7 +3,7 @@ do_install_append_stm32mpcommon() {
     if ${@bb.utils.contains('MACHINE_FEATURES','watchdog','true','false',d)}; then
         install -d ${D}${systemd_unitdir}/system.conf.d/
         echo "[Manager]" > ${D}${systemd_unitdir}/system.conf.d/01-watchdog.conf
-        echo "RuntimeWatchdogSec=120" >> ${D}${systemd_unitdir}/system.conf.d/01-watchdog.conf
+        echo "RuntimeWatchdogSec=32" >> ${D}${systemd_unitdir}/system.conf.d/01-watchdog.conf
         echo "ShutdownWatchdogSec=2min" >> ${D}${systemd_unitdir}/system.conf.d/01-watchdog.conf
     fi
 }