xtensa: enable HAVE_PERF_EVENTS

This allows the perf tool to monitor kernel tracepoint events.
Signed-off-by: NBaruch Siach <baruch@tkos.co.il>
Signed-off-by: NMax Filippov <jcmvbkbc@gmail.com>

arch/xtensa/Kconfig

@@ -19,6 +19,7 @@ config XTENSA
 	select HAVE_OPROFILE
 	select HAVE_FUNCTION_TRACER
 	select HAVE_IRQ_TIME_ACCOUNTING
+	select HAVE_PERF_EVENTS
 	help
 	  Xtensa processors are 32-bit RISC machines designed by Tensilica
 	  primarily for embedded systems.  These processors are both

arch/xtensa/include/asm/perf_event.h

+#ifndef __ASM_XTENSA_PERF_EVENT_H
+#define __ASM_XTENSA_PERF_EVENT_H
+
+#endif /* __ASM_XTENSA_PERF_EVENT_H */