hotp: add missing TA_VERSION and TA_DESCRIPTION

Add missing TA_VERSION and TA_DESCRIPTION macros on HOTP example.

Signed-off-by: Etienne Carriere <etienne.carriere@foss.st.com>
Reviewed-by: Joakim Bech <joakim.bech@linaro.org>
diff --git a/hotp/ta/user_ta_header_defines.h b/hotp/ta/user_ta_header_defines.h
index 130b5dd..db8d888 100644
--- a/hotp/ta/user_ta_header_defines.h
+++ b/hotp/ta/user_ta_header_defines.h
@@ -22,4 +22,10 @@
 /* Provisioned heap size for TEE_Malloc() and friends */
 #define TA_DATA_SIZE	(32 * 1024)
 
+/* The gpd.ta.version property */
+#define TA_VERSION	"1.0"
+
+/* The gpd.ta.description property */
+#define TA_DESCRIPTION	"Example of One Time Passwords based HMAC operation (RFC4226)"
+
 #endif