ARM: multi_v7_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/multi_v7_defconfig

@@ -537,6 +537,7 @@ CONFIG_REGULATOR_GPIO=y
 CONFIG_REGULATOR_LP872X=y
 CONFIG_REGULATOR_MAX14577=m
 CONFIG_REGULATOR_MAX8907=y
+CONFIG_REGULATOR_MAX8952=m
 CONFIG_REGULATOR_MAX8973=y
 CONFIG_REGULATOR_MAX8997=m
 CONFIG_REGULATOR_MAX8998=m