sched_tp: Now 5.7-rc1 is released, change the compatability condition

The change that broke the trace event was actually merged in Linus tree
on 5.7, but since we test tip/sched/core which had the change earlier,
the version condition was temporarily incorrect to cope with that. Now
5.7 is released, apply the correct condition.

Signed-off-by: Qais Yousef <qais.yousef@arm.com>

kernel/sched/sched_events.h

@@ -14,7 +14,7 @@
 #include <linux/tracepoint.h>
 #include <linux/version.h>
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(5,6,0)
+#if LINUX_VERSION_CODE <= KERNEL_VERSION(5,6,0)
 #define RBL_LOAD_ENTRY		rbl_load
 #define RBL_LOAD_MEMBER		runnable_load_avg
 #define RBL_LOAD_STR		"rbl_load"