block: fiops add some trace information

Add some trace information, which is helpful when I do debugging.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
block: fiops: give reads twice as much share as writes by default.
OMAP4: cpuidle: don't touch mpu and core state until CPU1 is off

MPU/Core logic and PD states shouldn't be changed until CPU1 is
completely off

Change-Id: Ia90126776e7bd7108c7b885c622df36323982cb0
Signed-off-by: Lianwei Wang <lian-wei.wang@motorola.com>
Signed-off-by: suilunlam <a0868997@ti.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>
OMAP4: cpuidle: Some obvious optimisations to the code path
Revert "Undervolt by default"

This reverts commit df70931052738790689c3b86f0dcb07de0009e79.
Revert "Fix Defined but not in use"

This reverts commit 3551c51e8b383ba1d26eccf640a2f4d2112d08a5.