refactor: 对LiteOS_a内核中menuconfig开关的宏使用#ifdef/#ifndef做预编译处理

LiteOS_a中有部分配置宏进行了重复冗余定义，导致当头文件未被包含时，极易引入错误，
故对menuconfig配置宏进行统一处理，均使用#ifdef/#ifndef作为预编译判断方式

Close #I3YEGS

Change-Id: Ife6db770cc66de1d6199a4f3ba3950e9bfd0e71a
Signed-off-by: boxi <lewis.liulei@huawei.com>

kernel/base/include/los_percpu_pri.h

@@ -43,7 +43,7 @@ extern "C" {
 #endif /* __cplusplus */
 #endif /* __cplusplus */
 
-#if (LOSCFG_KERNEL_SMP == YES)
+#ifdef LOSCFG_KERNEL_SMP
 typedef enum {
     CPU_RUNNING = 0,   /* cpu is running */
     CPU_HALT,          /* cpu in the halt */
@@ -66,7 +66,7 @@ typedef struct {
     UINT32            swtmrTaskID;           /* software timer task id */
 
     UINT32            schedFlag;             /* pending scheduler flag */
-#if (LOSCFG_KERNEL_SMP == YES)
+#ifdef LOSCFG_KERNEL_SMP
     UINT32            excFlag;               /* cpu halt or exc flag */
 #endif
 } Percpu;