systemd: Use overlay for specifying watchdog parameters
There's no reason to sed stuff. This way also makes it easier to support
running with empty /etc.
Change-Id: I16c0dba53682df574ee119951f47c7c6d4071d61
diff --git a/board/czechlight/common/overlay/usr/lib/systemd/system.conf.d/watchdog.conf b/board/czechlight/common/overlay/usr/lib/systemd/system.conf.d/watchdog.conf
new file mode 100644
index 0000000..3c8a109
--- /dev/null
+++ b/board/czechlight/common/overlay/usr/lib/systemd/system.conf.d/watchdog.conf
@@ -0,0 +1,3 @@
+[Manager]
+RuntimeWatchdogSec=60
+ShutdownWatchdogSec=60
diff --git a/board/czechlight/common/systemd-watchdog.sh b/board/czechlight/common/systemd-watchdog.sh
deleted file mode 100755
index 07ad9f0..0000000
--- a/board/czechlight/common/systemd-watchdog.sh
+++ /dev/null
@@ -1,6 +0,0 @@
-#!/bin/bash
-
-set -eux
-
-sed -i -E "s/(#?)ShutdownWatchdogSec=(.*)/ShutdownWatchdogSec=60/" ${TARGET_DIR}/etc/systemd/system.conf
-sed -i -E "s/(#?)RuntimeWatchdogSec=(.*)/RuntimeWatchdogSec=60/" ${TARGET_DIR}/etc/systemd/system.conf