meta-openpower: Use proper paths in service files

Using /usr/bin/env is an antipattern.

Signed-off-by: Matt Spinler <spinler@us.ibm.com>
Change-Id: I6b4f647a10fd8c261e2b42cfdae030749ded7c29
diff --git a/meta-openpower/recipes-phosphor/host/op-host-control/start_host@.service b/meta-openpower/recipes-phosphor/host/op-host-control/start_host@.service
index aa12be3..bfe8dbe 100644
--- a/meta-openpower/recipes-phosphor/host/op-host-control/start_host@.service
+++ b/meta-openpower/recipes-phosphor/host/op-host-control/start_host@.service
@@ -12,8 +12,7 @@
 ConditionPathExists=!/run/openbmc/mpreboot@%i
 
 [Service]
-ExecStart=/usr/bin/env openpower-proc-control startHost
-SyslogIdentifier=openpower-proc-control
+ExecStart=/usr/bin/openpower-proc-control startHost
 Type=oneshot
 RemainAfterExit=yes