ARM: dts: Add suspend configuration for max77686 regulators for exynos4412-trats2
ARM: dts: Add suspend configuration for max77686 regulators for exynos4412-trats2

Add suspend to RAM configuration for max77686 regulators. Some LDOs
and bucks are disabled. This reduces energy consumption during S2R,
approximately from 17 mA to 9 mA.

Additionally remove old and not supported bindings:
 - regulator-mem-off
 - regulator-mem-idle
 - regulator-mem-on
The max77686 driver does not parse them and they are not documented
anywere.

Signed-off-by: Krzysztof Kozlowski <1a8531307367602b8284517edb33d53d54e5ce8e@samsung.com>
Reviewed-by: Javier Martinez Canillas <039000e09e601bba70626bd0fbe59654c9cf8cac@collabora.co.uk>
Reviewed-by: Chanwoo Choi <42eed19c0f56a8d487deac90c6d19d6364b7ba73@samsung.com>
Signed-off-by: Kukjin Kim <025cfe326dd94d6c85bc39050c0efed47f247d2a@kernel.org>

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