fconf: Add TBBR disable_authentication property

Use fconf to retrieve the `disable_authentication` property.
Move this access from arm dynamic configuration to bl common.

Change-Id: Ibf184a5c6245d04839222f5457cf5e651f252b86
Signed-off-by: Louis Mayencourt <louis.mayencourt@arm.com>
diff --git a/include/lib/fconf/fconf_tbbr_getter.h b/include/lib/fconf/fconf_tbbr_getter.h
index fb81e7b..32e1b65 100644
--- a/include/lib/fconf/fconf_tbbr_getter.h
+++ b/include/lib/fconf/fconf_tbbr_getter.h
@@ -12,4 +12,14 @@
 /* TBBR related getter */
 #define tbbr__cot_getter(id)	cot_desc_ptr[id]
 
+#define tbbr__dyn_config_getter(id)	tbbr_dyn_config.id
+
+struct tbbr_dyn_config_t {
+	uint32_t disable_auth;
+};
+
+extern struct tbbr_dyn_config_t tbbr_dyn_config;
+
+int fconf_populate_tbbr_dyn_config(uintptr_t config);
+
 #endif /* FCONF_TBBR_GETTER_H */