ARM: ux500: Staticise ux500_soc_attr
ARM: ux500: Staticise ux500_soc_attr

This variable is not used outside of the file that it's declared in, so
reduce the scope to the local file.

Signed-off-by: Thierry Reding <3055038c414aef68bf32c33b8118623e7554e0f2@nvidia.com>
[Also add const marker after suggestion from Lee Jones]
Signed-off-by: Linus Walleij <9cd9d802d23c0ed5e224beabf4ae4a5c478746ef@linaro.org>

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