linux-yocto/4.4: explicitly enable ftrace in tracing fragment
The recent split/factoring between production and development
kernel configurations, EXPERT, EMBEDDED and DEBUG_KERNEL are no longer
selected for all kernel types. This means that ftrace is no longer
selected by default in in standard BSPs, causing breakage in things
that relied on it.
Signed-off-by: California Sullivan <california.l.sullivan@intel.com> Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
