fix build errors when CPU_IDLE is disabled

Signed-off-by: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>
Change-Id: I0783810ab18563482bcf2cf122072d8f02a8eb98
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/2435
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
1 file changed