accel: rename `accelOobGetDbus` to `getBus`

accelOobGetDbus returns a dbus bus which can be leverage by others.
Rename it to a more common name.

Tested: Unittest passed.
Signed-off-by: Michael Shen <gpgpgp@google.com>
Change-Id: I0e48f7f6a49c09b397d52e9343bc3e32ca41d9d8
diff --git a/handler.cpp b/handler.cpp
index 3aa14c4..6113f5d 100644
--- a/handler.cpp
+++ b/handler.cpp
@@ -410,7 +410,7 @@
 
 } // namespace
 
-sdbusplus::bus::bus Handler::accelOobGetDbus() const
+sdbusplus::bus::bus Handler::getDbus() const
 {
     return sdbusplus::bus::new_default();
 }
@@ -421,7 +421,7 @@
 
     try
     {
-        auto bus = accelOobGetDbus();
+        auto bus = getDbus();
         auto method = bus.new_method_call(ACCEL_OOB_SERVICE, "/",
                                           "org.freedesktop.DBus.ObjectManager",
                                           "GetManagedObjects");
@@ -444,7 +444,7 @@
 
     try
     {
-        auto bus = accelOobGetDbus();
+        auto bus = getDbus();
         auto method = bus.new_method_call(ACCEL_OOB_SERVICE, "/",
                                           "org.freedesktop.DBus.ObjectManager",
                                           "GetManagedObjects");
@@ -483,7 +483,7 @@
     std::string object_name(ACCEL_OOB_ROOT);
     object_name.append(name);
 
-    auto bus = accelOobGetDbus();
+    auto bus = getDbus();
     auto method = bus.new_method_call(ACCEL_OOB_SERVICE, object_name.c_str(),
                                       ACCEL_OOB_INTERFACE, ACCEL_OOB_METHOD);
     method.append(address, static_cast<uint64_t>(num_bytes));
@@ -577,7 +577,7 @@
 
     try
     {
-        auto bus = accelOobGetDbus();
+        auto bus = getDbus();
         auto method =
             bus.new_method_call(ACCEL_OOB_SERVICE, object_name.c_str(),
                                 ACCEL_OOB_INTERFACE, ACCEL_OOB_METHOD.data());