Rename version_software_manager_main.cpp

In view of a single process that watches image upload locations via
inotify, and creates software version d-bus objects (both default and
via user-supplied images), renaming version_software_manager_main.cpp to
image_manager_main.cpp.

Change-Id: Id12deefd9377f7ba4ce4889f26f2f32d01cc5d38
Signed-off-by: Deepak Kodihalli <dkodihal@in.ibm.com>
diff --git a/Makefile.am b/Makefile.am
index 92a318e..1e863d7 100755
--- a/Makefile.am
+++ b/Makefile.am
@@ -6,7 +6,7 @@
 
 phosphor_version_software_manager_SOURCES = \
 	version_software_manager.cpp \
-	version_software_manager_main.cpp
+	image_manager_main.cpp
 
 phosphor_download_manager_SOURCES = \
 	download_manager.cpp \