moved type and constants for random data to include file;

added consistency check in random; added source of randomness
internal to random using timing; only retrieve random bins that are full.

kernel/arch/i386/do_int86.c

@@ -36,7 +36,7 @@ register message *m_ptr;	/* pointer to request message */
    * not very random.
    */
   lock;
-  get_randomness(CLOCK_IRQ);
+  get_randomness(&krandom, CLOCK_IRQ);
   unlock;
 
   return(OK);