[meta-freescale] Master - Perf compile error

[Jose Mª Ferreiro]

Hello

We are trying to build Yocto master with linux-fslc for a iMX6Q 
Sabrelite board and we got this error at perf.c:
#include <lk/debugfs.h> No such file or directory

This line from perf tool has changed from dylan to master. At dylan it was:
#include "util/debugfs.h"

On the other way, linux-imx must have that header (because it compiles 
with Yocto master) but I don´t know if I can use them ... or how to use 
them.

Also I looked for and I found some people saying linux-fslc does not 
provide some headers, but I can not find anyone saying how I can add them.

Any clue?

Thank you and best regards