gpio-monitor: Remove oneshot type

phosphor-gpio-monitor is designed to be running until some
condition is met and hence not a Oneshot application.

Currently, it gets started as part of PowerOn and stops as part of
PowerOff.

Change-Id: I6f0dc7f9061afb07fe5712a81fa1db2132c6aca7
Signed-off-by: Vishwanatha Subbanna <vishwa@linux.vnet.ibm.com>
diff --git a/meta-phosphor/common/recipes-phosphor/gpio/phosphor-gpio-monitor/phosphor-gpio-monitor@.service b/meta-phosphor/common/recipes-phosphor/gpio/phosphor-gpio-monitor/phosphor-gpio-monitor@.service
index 37d1279..a4b0902 100644
--- a/meta-phosphor/common/recipes-phosphor/gpio/phosphor-gpio-monitor/phosphor-gpio-monitor@.service
+++ b/meta-phosphor/common/recipes-phosphor/gpio/phosphor-gpio-monitor/phosphor-gpio-monitor@.service
@@ -3,6 +3,5 @@
 
 [Service]
 Restart=no
-Type=oneshot
 EnvironmentFile={envfiledir}/obmc/gpio/%I
 ExecStart={sbindir}/phosphor-gpio-monitor --path=${{PATH}} --key=${{KEY}} --polarity=${{POLARITY}} --target=${{TARGET}}