Fixed the random-seed generators for the Commodore targets.

They use a byte from the time counter; but, it is stored in big-endian order.

libsrc/vic20/randomize.s

@@ -1,5 +1,6 @@
 ;
-; Ullrich von Bassewitz, 05.11.2002
+; 2002-11-05, Ullrich von Bassewitz
+; 2015-09-11, Greg King
 ;
 ; void _randomize (void);
 ; /* Initialize the random number generator */
@@ -16,6 +17,6 @@ __randomize:
         lda     VIC_HLINE       ; Get bit 1-8 of rasterline
         rol     a               ; Use bit 0-7
         tax                     ; Use VIC rasterline as high byte
-        lda     TIME            ; Use 60HZ clock as low byte
+        lda     TIME+2          ; Use 60HZ clock as low byte
         jmp     _srand          ; Initialize generator