ARM: 7238/1: integrator: only hardcode AP PrimeCell IDs

We don't need to hardcode the peripheral IDs for the Integrator/CP,
the numbers found in the hardware are correct anyway.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>