math:p_cos: Don't normalize angle
math:p_cos: Don't normalize angle

Function spec is to work only on 0-2PI.

Signed-off-by: Ola Jeppsson <793f970c52ded1276b9264c742f19d1888cbaf73@adapteva.com>

aolofsson/pal,debug-de-su-ka/pal,mateunho/pal,aolofsson/pal,debug-de-su-ka/pal,parallella/pal,eliteraspberries/pal,debug-de-su-ka/pal,eliteraspberries/pal,parallella/pal,eliteraspberries/pal,parallella/pal,mateunho/pal,debug-de-su-ka/pal,aolofsson/pal,parallella/pal,mateunho/pal,eliteraspberries/pal,parallella/pal,debug-de-su-ka/pal,aolofsson/pal,eliteraspberries/pal,mateunho/pal,mateunho/pal