Add occ_ prefix for i2c occ dbus objects

I2c occ dbus objects path were their i2c addresses, e.g. 3_0050.
This does not indicate it's occ objects, and it does not work with
op-occ-disable/enable services, which searches "occ" key words in object
path.

So add "occ_" prefix for i2c occ dbus objects, e.g. occ_3_0050, to
indicate it's occ objects and work well with op-occ-disable/enable
services.

Change-Id: I21712f2fb7cf6138248f6986b84f99c90c3fa3a2
Signed-off-by: Lei YU <mine260309@gmail.com>
diff --git a/test/utest.cpp b/test/utest.cpp
index 44691c2..9731209 100644
--- a/test/utest.cpp
+++ b/test/utest.cpp
@@ -11,7 +11,7 @@
             bus(sdbusplus::bus::new_default()),
             rc(sd_event_default(&event)),
             eventP(event),
-            occStatus(bus, eventP, "/test/path"),
+            occStatus(bus, eventP, "/test/path/occ1"),
             pcap(bus,occStatus)
         {
             EXPECT_GE(rc, 0);