busybox: Install watchdog

Enable the watchdog application

Change-Id: I83829b7e4270359a4dcf2a7aad92035f783b9a6c
Signed-off-by: Matt Spinler <spinler@us.ibm.com>
diff --git a/meta-phosphor/common/recipes-core/busybox/busybox/busybox.cfg b/meta-phosphor/common/recipes-core/busybox/busybox/busybox.cfg
index 9e78838..6afeed5 100644
--- a/meta-phosphor/common/recipes-core/busybox/busybox/busybox.cfg
+++ b/meta-phosphor/common/recipes-core/busybox/busybox/busybox.cfg
@@ -2,3 +2,4 @@
 CONFIG_FEATURE_LS_COLOR_IS_DEFAULT=y
 CONFIG_FEATURE_LESS_TRUNCATE=y
 CONFIG_FEATURE_LESS_REGEXP=y
+CONFIG_WATCHDOG=y