random: add missing TA_VERSION and TA_DESCRIPTION

Add missing TA_VERSION and TA_DESCRIPTION macros on Random bytes example.

Signed-off-by: Etienne Carriere <etienne.carriere@foss.st.com>
Reviewed-by: Joakim Bech <joakim.bech@linaro.org>

Author: etienne-lms

random/ta/user_ta_header_defines.h

@@ -49,4 +49,10 @@
 /* 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 how a TA can get a buffer of random bytes"
+
 #endif /* USER_TA_HEADER_DEFINES_H */