MAINTAINERS: Add maintainers entry for drivers/soc/samsung

This patch adds maintainers entry for new driver folder
drivers/soc/samsung
Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>

MAINTAINERS

@@ -1493,6 +1493,7 @@ F:	arch/arm/mach-s5p*/
 F:	arch/arm/mach-exynos*/
 F:	drivers/*/*s3c2410*
 F:	drivers/*/*/*s3c2410*
+F:	drivers/soc/samsung/*
 F:	drivers/spi/spi-s3c*
 F:	sound/soc/samsung/*
 F:	Documentation/arm/Samsung/