Correct RISC-V port #endif preprocessor comments

The comment after vPortSetupTimerInterrupt in GCC and IAR RISC-V port.c duplicated configMTIME_BASE_ADDRESS and omitted configMTIMECMP_BASE_ADDRESS. Align the comment with the matching #if condition.

Author: cuiweixie

portable/GCC/RISC-V/port.c

@@ -154,7 +154,7 @@ size_t xTaskReturnAddress = ( size_t ) portTASK_RETURN_ADDRESS;
         ullNextTime += ( uint64_t ) uxTimerIncrementsForOneTick;
     }
 
-#endif /* ( configMTIME_BASE_ADDRESS != 0 ) && ( configMTIME_BASE_ADDRESS != 0 ) */
+#endif /* ( configMTIME_BASE_ADDRESS != 0 ) && ( configMTIMECMP_BASE_ADDRESS != 0 ) */
 /*-----------------------------------------------------------*/
 
 BaseType_t xPortStartScheduler( void )

portable/IAR/RISC-V/port.c

@@ -187,7 +187,7 @@ static void prvTaskExitError( void )
         ullNextTime += ( uint64_t ) uxTimerIncrementsForOneTick;
     }
 
-#endif /* ( configMTIME_BASE_ADDRESS != 0 ) && ( configMTIME_BASE_ADDRESS != 0 ) */
+#endif /* ( configMTIME_BASE_ADDRESS != 0 ) && ( configMTIMECMP_BASE_ADDRESS != 0 ) */
 /*-----------------------------------------------------------*/
 
 BaseType_t xPortStartScheduler( void )