Attn: Delay start until after CFAM override

Avoid potential conflicts between CFAM override DBus target and the
attention handler by not starting attention handler before/during CFAM
override DBus target start.

Signed-off-by: Ben Tyner <ben.tyner@ibm.com>
Change-Id: Iba4e5775dbb3b4a5b4aeff5c904c19ffab7b2e04
diff --git a/attn/attn_handler.service b/attn/attn_handler.service
index 5298eca..1913fdf 100644
--- a/attn/attn_handler.service
+++ b/attn/attn_handler.service
@@ -5,6 +5,7 @@
 After=mapper-wait@-xyz-openbmc_project-logging.service
 After=fsi-scan@0.service
 After=op-cfam-reset.service
+After=cfam_override@0.service
 Conflicts=obmc-host-stop@0.target
 
 [Service]