HV:common:transfer local variable type

The local variable type should be transfer to non-basic type,
chaned it to length-prefix(uint32_t,int32_t ...) type.

Char *type or char array type which used to pointer a string
will be keeped.

V1->V2 add extra comments.

Signed-off-by: Huihuang Shi <huihuang.shi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>

hypervisor/common/schedule.c

@@ -11,7 +11,7 @@ static unsigned long pcpu_used_bitmap;
 
 void init_scheduler(void)
 {
-	int i;
+	uint32_t i;
 
 	for (i = 0; i < phys_cpu_num; i++) {
 		spinlock_init(&per_cpu(sched_ctx, i).runqueue_lock);