vfp: Cortex-A15 optimizations

Signed-off-by: LaboDJ <jacopolabardi@gmail.com>
Signed-off-by: engstk <eng.stk@sapo.pt>
arm: Cortex-A15 optimizations

Signed-off-by: LaboDJ <jacopolabardi@gmail.com>
Signed-off-by: engstk <eng.stk@sapo.pt>
Signed-off-by: Paul <javelinanddart@gmail.com>