fiptool: Prepare ground for expanding the set of images at runtime

To allow operating on images with unknown UUIDs, fiptool needs to
be able to track an arbitrary amount of images and not be limited
to the set of images described by the builtin table.

Convert the table to a list to accommodate this scenario.

Change-Id: I0e6d738eece7795d74fc72d165a3098f223d4414
Signed-off-by: dp-arm <dimitris.papastamos@arm.com>
diff --git a/tools/fiptool/tbbr_config.h b/tools/fiptool/tbbr_config.h
index c459335..0cf8e7f 100644
--- a/tools/fiptool/tbbr_config.h
+++ b/tools/fiptool/tbbr_config.h
@@ -39,11 +39,9 @@
 #define TOC_HEADER_SERIAL_NUMBER 0x12345678
 
 typedef struct toc_entry {
-	const char   *name;
+	char         *name;
 	uuid_t        uuid;
-	const char   *cmdline_name;
-	int           action;
-	char         *action_arg;
+	char         *cmdline_name;
 } toc_entry_t;
 
 extern toc_entry_t toc_entries[];