Fixed determine/process reboot-cause service dependency

Signed-off-by: anamehra <anamehra@cisco.com>

data/debian/sonic-host-services-data.determine-reboot-cause.service

@@ -1,12 +1,13 @@
 [Unit]
 Description=Reboot cause determination service
-Requires=rc-local.service database.service
-After=rc-local.service database.service
+Requires=rc-local.service
+After=rc-local.service
+ConditionPathExists=!/tmp/determine-reboot-cause
 
 [Service]
 Type=oneshot
 RemainAfterExit=yes
 ExecStart=/usr/local/bin/determine-reboot-cause
-
+ExecStartPost=/usr/bin/touch /tmp/determine-reboot-cause
 [Install]
 WantedBy=multi-user.target

data/debian/sonic-host-services-data.process-reboot-cause.service

@@ -1,8 +1,9 @@
 [Unit]
 Description=Retrieve the reboot cause from the history files and save them to StateDB
-Requires=database.service determine-reboot-cause.service
+Requires=database.service
 After=database.service determine-reboot-cause.service
 
 [Service]
 Type=simple
+RemainAfterExit=yes
 ExecStart=/usr/local/bin/process-reboot-cause

data/debian/sonic-host-services-data.process-reboot-cause.timer

@@ -1,7 +1,9 @@
 [Unit]
 Description=Delays process-reboot-cause until network is stably connected
+PartOf=process-reboot-cause.service
 
 [Timer]
+OnUnitActiveSec=0 sec
 OnBootSec=1min 30 sec
 Unit=process-reboot-cause.service