sched: core_ctl: include types.h from uapi

struct sched_param definition is moved to types.h part of
uapi headers which is needed to compile core_ctl.

Change-Id: I5b7457ba071db4e11f2ffbcde6b41aa77d8e206f
Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>