products/aocpu: Add SMP kernel supported with 1 core option. [4/9]

PD#SWPL-67429

Problem:
Add SMP supported.

Solution:
Fixed compile warning in main.c

Verify:
N/A

Change-Id: I5707428b88bab66447abd5e1548df9d0eecf850d
Signed-off-by: xiaohu.huang <xiaohu.huang@amlogic.com>
diff --git a/main.c b/main.c
index a7e4216..32590f8 100644
--- a/main.c
+++ b/main.c
@@ -51,9 +51,7 @@
 }
 /*-----------------------------------------------------------*/
 
-void vApplicationStackOverflowHook( TaskHandle_t xTask, signed char *pcTaskName );
-
-void vApplicationStackOverflowHook( TaskHandle_t xTask, signed char *pcTaskName )
+void vApplicationStackOverflowHook(TaskHandle_t xTask, char *pcTaskName)
 {
     ( void ) pcTaskName;
     ( void ) xTask;