OpenPOWER: Add support for Hostboot dump.

Hostboot dump is a dump created during the boot failure
on OpenPOWER based systems.
The dump get extracted from Self Boot Engine(SBE) with
the openpower-dump-manager application.
That application will call into phosphor-dump-manager
to create a dump with the data collected from each
SBE in the system.

Role of phosphor-debug-collector hostboot dump manager

 - Create the hostboot dump package directory
 - Create hostboot dump entry
 - Implement notify interface to get notified when the
   collection is completed
 - Once notified collect each file from the predefined
   location and package it into a dump.
 - Update the hostboot dump entry with details once
   dump packaging is completed.

Tested:
- Create a dump entry with busctl
- create a dummy file in search path
- Call notify with busctl

Signed-off-by: Dhruvaraj Subhshchandran <dhruvaraj@in.ibm.com>
Change-Id: I2dab3b7ca976ed33184f770722cca00b1b02c075
diff --git a/dump_manager_bmcstored.hpp b/dump_manager_bmcstored.hpp
index 1ea17d4..9c3cf28 100644
--- a/dump_manager_bmcstored.hpp
+++ b/dump_manager_bmcstored.hpp
@@ -8,13 +8,13 @@
 
 #include <filesystem>
 #include <map>
-
 namespace phosphor
 {
 namespace dump
 {
 namespace bmc_stored
 {
+using namespace phosphor::logging;
 using UserMap = phosphor::dump::inotify::UserMap;
 
 using Watch = phosphor::dump::inotify::Watch;