Move ec.h to ec2.h because it is not compatible with what we will use.

Add EC vaporware: change relevant Makefiles and add some empty source
files.

"make update".

crypto/rand/rand.h

@@ -112,10 +112,6 @@ int RAND_event(UINT, WPARAM, LPARAM);
 
 #endif
 
-#ifdef  __cplusplus
-}
-#endif
-
 /* BEGIN ERROR CODES */
 /* The following lines are auto generated by the script mkerr.pl. Any changes
  * made after this point may be overwritten when the script is next run.
@@ -129,5 +125,8 @@ int RAND_event(UINT, WPARAM, LPARAM);
 /* Reason codes. */
 #define RAND_R_PRNG_NOT_SEEDED				 100
 
+#ifdef  __cplusplus
+}
+#endif
 #endif