wspoon: Revert fan watchdog timeout

An increase to the fan watchdog timeout was done to mediate a BMC
performmance issue, which has now been resolved, so reducing the fan
watchdog timeout. The timeout should be set to 5 seconds (instead of
originally 3 seconds) to functionally align with the 5 second timer that
fan control uses in adjusting fan speeds.

The fan watchdog timeout increase was done under:
    https://gerrit.openbmc-project.xyz/#/c/8398/

The performance issue with the OCC patches:
    http://patchwork.ozlabs.org/project/openbmc/list/
    (Series = Locking fixes for FSI, SBEFIFO, OCC)

Tested:
    The fan-watchdog.conf file in BMC image contains 5 second timeout

Change-Id: I1f99cf33ce3f17b291bf0997f792e2409ec5fb2b
Signed-off-by: Matthew Barth <msbarth@us.ibm.com>
diff --git a/meta-witherspoon/recipes-phosphor/fans/witherspoon-fan-watchdog/obmc/witherspoon-fan-watchdog/fan-watchdog.conf b/meta-witherspoon/recipes-phosphor/fans/witherspoon-fan-watchdog/obmc/witherspoon-fan-watchdog/fan-watchdog.conf
index c8bc2fa..ce7824c 100644
--- a/meta-witherspoon/recipes-phosphor/fans/witherspoon-fan-watchdog/obmc/witherspoon-fan-watchdog/fan-watchdog.conf
+++ b/meta-witherspoon/recipes-phosphor/fans/witherspoon-fan-watchdog/obmc/witherspoon-fan-watchdog/fan-watchdog.conf
@@ -1,3 +1,3 @@
-TIMEOUT=10
+TIMEOUT=5
 INTERVAL=1
 DEVICE=/dev/watchdog0