linux-imx

ARM: integrator: delete non-devicetree boot path

The Device Tree boot path now supports everything the ATAG
boot can provide, and the two are equivalent. This deletes
the ATAG boot path from the Integrator/AP and
Integrator/CP platforms to move them on to the future.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>