Add autostart policy for these services of the openbmc repo.

Signed-off-by: Nan Li <bjlinan@cn.ibm.com>
diff --git a/common/recipes-phosphor/obmc-phosphor-chassis/files/obmc-phosphor-chassisd.service b/common/recipes-phosphor/obmc-phosphor-chassis/files/obmc-phosphor-chassisd.service
index 7711511..adb47d1 100644
--- a/common/recipes-phosphor/obmc-phosphor-chassis/files/obmc-phosphor-chassisd.service
+++ b/common/recipes-phosphor/obmc-phosphor-chassis/files/obmc-phosphor-chassisd.service
@@ -2,6 +2,7 @@
 Description=Phosphor OpenBMC chassis management daemon
 
 [Service]
+Restart=always
 ExecStart=/usr/sbin/obmc-phosphor-chassisd
 
 [Install]