Fix returned version.

Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>

src/fido/cmd_version.c

@@ -20,7 +20,7 @@
 #include "hsm.h"
 
 int cmd_version() {
-    memcpy(res_APDU, "CTAP_V2", strlen("U2F_V2"));
+    memcpy(res_APDU, "U2F_V2", strlen("U2F_V2"));
     res_APDU_size = strlen("U2F_V2");
     return SW_OK();
 }