Add note filter functions

sched/Kconfig

@@ -934,7 +934,7 @@ config SCHED_INSTRUMENTATION_EXTERNAL
 config SCHED_INSTRUMENTATION_CPUSET
 	hex "CPU bit set"
 	default 0xffff
-	depends on SMP
+	depends on SMP && SCHED_INSTRUMENTATION_FILTER
 	---help---
 		Monitor only CPUs in the bitset.  Bit 0=CPU0, Bit1=CPU1, etc.
 
@@ -990,6 +990,16 @@ config SCHED_INSTRUMENTATION_IRQHANDLER
 
 			void sched_note_irqhandler(int irq, FAR void *handler, bool enter);
 
+config SCHED_INSTRUMENTATION_FILTER
+	bool "Instrumenation filter"
+	default n
+	---help---
+		Enables the filter logic for the instrumentation. If this option
+		is enabled, the instrumentation data passed to sched_note_add()
+		can be filtered by syscall and IRQ number.
+		The filter logic can be configured by sched_note_filter APIs defined in
+		include/nuttx/sched_note.h.
+
 endif # SCHED_INSTRUMENTATION
 endmenu # Performance Monitoring