regulator: max77802: Remove suspend_enable

The Maxim 77802 PMIC regulators do not have special enable configuration
for suspend. The driver instead enabled them manually which is not a
best way to deal with suspend.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>