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/phosphor-fan/fan-watchdog-monitor.conf b/recipes-phosphor/fans/phosphor-fan/fan-watchdog-monitor.conf
index 023e61a..e72de88 100644
--- a/recipes-phosphor/fans/phosphor-fan/fan-watchdog-monitor.conf
+++ b/recipes-phosphor/fans/phosphor-fan/fan-watchdog-monitor.conf
@@ -1,5 +1,5 @@
 [Unit]
 #These overrides allow the fan watchdog to take over when this service dies
-OnFailure=witherspoon-fan-watchdog-monitor@%n.service
+OnFailure=fan-watchdog-monitor@%n.service
 StartLimitIntervalSec=5
 StartLimitBurst=3