Rename BMC Dump path BMC_DUMP_FILE_DIR to BMC_DUMP_PATH.

Change-Id: I85974e00c31f5179106674ececeb53072008a83d
Signed-off-by: Jayanth Othayoth <ojayanth@in.ibm.com>
diff --git a/dump_manager.hpp b/dump_manager.hpp
index 55947b2..4e6715b 100644
--- a/dump_manager.hpp
+++ b/dump_manager.hpp
@@ -66,7 +66,7 @@
                   IN_NONBLOCK,
                   IN_CLOSE_WRITE,
                   EPOLLIN,
-                  BMC_DUMP_FILE_DIR,
+                  BMC_DUMP_PATH,
                   std::bind(
                        std::mem_fn(
                             &phosphor::dump::Manager::watchCallback),