ARM: u300: enable delaytimer on the U300
ARM: u300: enable delaytimer on the U300

The U300 can support timer-based delays, so implement this.
Skips past jiffy calibration.

Signed-off-by: Linus Walleij <9cd9d802d23c0ed5e224beabf4ae4a5c478746ef@linaro.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs