synch targets: ensure wants relationship

Synchronization targets (i.e. targets that do not have services
underneath them) require "Wants" relationships to ensure they are
started and utilized. In most cases a service using them as a
synchronization target will ensure they are started but to be sure,
this should be explicitly defined within the targets themselves.

Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
Change-Id: I053d1aba3f1596267a3ad3dbc6450f77df8a9396
diff --git a/target_files/obmc-power-start@.target b/target_files/obmc-power-start@.target
index b3bd11e..9f28d5b 100644
--- a/target_files/obmc-power-start@.target
+++ b/target_files/obmc-power-start@.target
@@ -1,5 +1,6 @@
 [Unit]
 Description=Power%i On
+Wants=obmc-power-start-pre@%i.target
 After=obmc-power-start-pre@%i.target
 After=multi-user.target
 Conflicts=obmc-chassis-poweroff@%i.target