ARM: exynos_defconfig: Add MAX8952 regulator driver

Add regulator driver for MAX8952 PMIC chip used on Samsung UniversalC210
board.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

arch/arm/configs/exynos_defconfig

@@ -169,6 +169,7 @@ CONFIG_REGULATOR=y
 CONFIG_REGULATOR_FIXED_VOLTAGE=y
 CONFIG_REGULATOR_GPIO=y
 CONFIG_REGULATOR_MAX14577=y
+CONFIG_REGULATOR_MAX8952=y
 CONFIG_REGULATOR_MAX8997=y
 CONFIG_REGULATOR_MAX8998=y
 CONFIG_REGULATOR_MAX77686=y