Enable drivers for PMICs and MUICs present on Exynos-based devices:
 - max14577: charger, extcon, fuel gauge (max17040), regulator,
   used on: Gear 1, Gear 2,
 - max77693: charger, extcon, fuel gauge (max17042),
   used on: Trats2,

This allows full usage of charging stack on these devices along with
extcon connector.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NKukjin Kim <kgene@kernel.org>