meta-ampere: ac01: fix boot progress service warning

Fix below warning when starting the ampere-boot-progress.service
service:
 [   12.365381] systemd[1]: /lib/systemd/system/ampere-boot-progress.service:7:
       Failed to parse service restart specifier, ignoring: simple

Signed-off-by: Thang Q. Nguyen <thang@os.amperecomputing.com>
Change-Id: I0b7aa013b27e23f995745f7a5bebbaa39024eea2
diff --git a/meta-ampere/meta-common/recipes-ampere/host/ac01-boot-progress/ampere-boot-progress.service b/meta-ampere/meta-common/recipes-ampere/host/ac01-boot-progress/ampere-boot-progress.service
index 44e4b96..06af72a 100644
--- a/meta-ampere/meta-common/recipes-ampere/host/ac01-boot-progress/ampere-boot-progress.service
+++ b/meta-ampere/meta-common/recipes-ampere/host/ac01-boot-progress/ampere-boot-progress.service
@@ -4,10 +4,8 @@
 BindTo=obmc-host-already-on@0.target
 
 [Service]
-Restart=simple
 ExecStart=/usr/sbin/ampere_boot_progress.sh
 SyslogIdentifier=ampere-boot-progress
-RemainAfterExit=no
 
 [Install]
 WantedBy=obmc-host-already-on@0.target