witherspoon: Remove `witherspoon` naming from fan watchdog

Remove the use of `witherspoon` in the names of the recipe, config
files, and services of the fan watchdog. This is in prep to use this
same fan watchdog on other machines within meta-ibm that have different
configurations.

Tested:
    Witherspoon image matches image prior to change
    Flash image to Witherspoon and force watchdog to trip

Change-Id: I86f37921410e0b0c5a318b8aef19c8e0b2774f45
Signed-off-by: Matthew Barth <msbarth@us.ibm.com>
diff --git a/recipes-phosphor/fans/fan-watchdog/fan-watchdog.service b/recipes-phosphor/fans/fan-watchdog/fan-watchdog.service
new file mode 100644
index 0000000..3f94183
--- /dev/null
+++ b/recipes-phosphor/fans/fan-watchdog/fan-watchdog.service
@@ -0,0 +1,13 @@
+[Unit]
+Description=Fan Watchdog Daemon
+Wants=phosphor-fan-monitor-init@0.service
+Before=phosphor-fan-monitor-init@0.service
+Conflicts=obmc-fan-watchdog-takeover.target
+
+[Service]
+EnvironmentFile={envfiledir}/obmc/fan-watchdog/fan-watchdog.conf
+ExecStart=/sbin/watchdog -T ${{TIMEOUT}} -t ${{INTERVAL}} -F ${{DEVICE}}
+KillSignal=SIGKILL
+
+[Install]
+RequiredBy=obmc-chassis-poweron@0.target