meta-ampere:mtmitchell: reduce fan present restart frequency

When BMC boots up with the host is on, sometimes phosphor-fan-presence-tach
starts early before power services, and it keeps restarting every 1 second
because there is no fan tach sensors yet. This causes the failure of
obmc-chassis-on service which leads to the failure in updating the host status.
This commit reduces the restart frequency of phosphor-fan-presence-tach service
to prevent the failure of obmc-chassis-on.

Tested:
1. Stress bmc reset cold.
2. The host state should be updated correctly.

Signed-off-by: Thu Ba Nguyen <[email protected]>

meta-ampere/meta-mitchell/recipes-phosphor/fans/phosphor-fan/mtmitchell/phosphor-fan-presence-tach@.service

@@ -0,0 +1,11 @@
+[Unit]
+Description=Phosphor Fan Presence Tach Daemon
+Wants=xyz.openbmc_project.fansensor.service
+After=xyz.openbmc_project.fansensor.service
+StartLimitIntervalSec=30
+StartLimitBurst=3
+
+[Service]
+Restart=on-failure
+ExecStart=phosphor-fan-presence-tach
+RestartSec=10

meta-ampere/meta-mitchell/recipes-phosphor/fans/phosphor-fan_%.bbappend

@@ -10,6 +10,7 @@ SRC_URI:append:mtmitchell  = "file://events.json \
                               file://presence.json \
                               file://[email protected] \
                               file://[email protected] \
+                              file://[email protected] \
 "
 
 do_configure:prepend:mtmitchell () {
@@ -30,4 +31,5 @@ do_install:append:mtmitchell () {
         install -d ${D}${systemd_system_unitdir}
         install -m 0644 ${WORKDIR}/phosphor-fan-monitor@.service ${D}${systemd_system_unitdir}
         install -m 0644 ${WORKDIR}/phosphor-fan-control@.service ${D}${systemd_system_unitdir}
+        install -m 0644 ${WORKDIR}/phosphor-fan-presence-tach@.service ${D}${systemd_system_unitdir}
 }