meta-quanta: Add hotswap ordering

We want it to be possible to order units prior to the powercycle event
if state needs to be persisted prior to a powercycle.

We can also remove the time_delay functionality as this is now provided
globally by the gbmc-psu-hardreset.target.

Change-Id: I15b33e120be0246dd821d0dfe9d61b5aae7d1492
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/meta-quanta/meta-gbs/recipes-gbs/hotswap-power-cycle/files/hotswap-power-cycle.service b/meta-quanta/meta-gbs/recipes-gbs/hotswap-power-cycle/files/hotswap-power-cycle.service
index 054b2fe..b95cafa 100644
--- a/meta-quanta/meta-gbs/recipes-gbs/hotswap-power-cycle/files/hotswap-power-cycle.service
+++ b/meta-quanta/meta-gbs/recipes-gbs/hotswap-power-cycle/files/hotswap-power-cycle.service
@@ -1,9 +1,9 @@
 [Unit]
 Description=Power Cycle by Hotswap Controller
+After=gbmc-psu-hardreset.target
 
 [Service]
 Type=oneshot
-EnvironmentFile=-/run/psu_timedelay
 ExecStart=/usr/bin/tray_powercycle.sh
 
 [Install]