fwu: add config symbols for enabling FWU metadata versions

Support has been added for version 2 of the FWU metadata
structure. Add config symbols to enable either of the two versions.

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Tested-by: Michal Simek <michal.simek@amd.com>
diff --git a/lib/fwu_updates/Kconfig b/lib/fwu_updates/Kconfig
index d35247d..51b7fbb 100644
--- a/lib/fwu_updates/Kconfig
+++ b/lib/fwu_updates/Kconfig
@@ -31,4 +31,18 @@
 	  the platform is allowed to boot in Trial State after an
 	  update.
 
+config FWU_MDATA_V1
+	bool "Enable support FWU Metadata version 1"
+	help
+	  The FWU specification supports two versions of the
+	  metadata structure. This option enables support for FWU
+	  Metadata version 1 access.
+
+config FWU_MDATA_V2
+	bool "Enable support FWU Metadata version 2"
+	help
+	  The FWU specification supports two versions of the
+	  metadata structure. This option enables support for FWU
+	  Metadata version 2 access.
+
 endif