ARM: EXYNOS: Handle of of_iomap() failure
ARM: EXYNOS: Handle of of_iomap() failure

Prevent possible NULL pointer dereference if of_iomap() fails.
Handle the error by skipping such power domain.

Signed-off-by: Krzysztof Kozlowski <1a8531307367602b8284517edb33d53d54e5ce8e@samsung.com>
Signed-off-by: Kukjin Kim <025cfe326dd94d6c85bc39050c0efed47f247d2a@kernel.org>

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