fix release version of M4 AC6 port

Author: Scott Larson

ports/cortex_m4/ac6/example_build/sample_threadx/tx_initialize_low_level.S

@@ -57,7 +57,7 @@ SYSTICK_CYCLES    =   ((SYSTEM_CLOCK / 100) -1)
 @/*  FUNCTION                                               RELEASE        */
 @/*                                                                        */
 @/*    _tx_initialize_low_level                          Cortex-M4/AC6     */
-@/*                                                           6.1          */
+@/*                                                           6.0.1        */
 @/*  AUTHOR                                                                */
 @/*                                                                        */
 @/*    William E. Lamie, Microsoft Corporation                             */
@@ -91,8 +91,6 @@ SYSTICK_CYCLES    =   ((SYSTEM_CLOCK / 100) -1)
 @/*    DATE              NAME                      DESCRIPTION             */
 @/*                                                                        */
 @/*  06-30-2020     William E. Lamie         Initial Version 6.0.1         */
-@/*  xx-xx-xxxx     William E. Lamie         Modified comments,            */
-@/*                                            resulting in version 6.1    */
 @/*                                                                        */
 @/**************************************************************************/
 @VOID   _tx_initialize_low_level(VOID)