kernel/task : fix taskdump table header printing format
kernel/task : fix taskdump table header printing format

task_show_alivetask_list:             NAME |   PID |  PRI | TOTAL STACK | STACK ALLOC ADDR | TCB ADDR
task_show_alivetask_list: ---------------------------------------------------------------------------
task_taskdump:        Idle Task |     0 |    0 |    1024 |       0x20003888 | 0x2000046c
task_taskdump:             tash |     2 |  125 |    4076 |       0x24002120 | 0x24001cb0
task_taskdump:          appmain |     3 |  100 |    1004 |       0x24001430 | 0x24001010

Signed-off-by: Abhishek Akkabathula <d7e0068fa4fa5deac598bc54a95fdd440f7851ef@samsung.com>

Samsung/TizenRT,Samsung/TizenRT,sunghan-chang/TizenRT,sunghan-chang/TizenRT,Samsung/TizenRT,Samsung/TizenRT,sunghan-chang/TizenRT,sunghan-chang/TizenRT,sunghan-chang/TizenRT,sunghan-chang/TizenRT,sunghan-chang/TizenRT,Samsung/TizenRT,Samsung/TizenRT,Samsung/TizenRT