MAINTAINERS: Add new Samsung subsystems

Add next Samsung subsystems with Sam Protsenko as a maintainer:

- Samsung CCF Clock Framework
- Exynos850 SoC Support
- Samsung SoC Drivers

Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

MAINTAINERS

@@ -563,6 +563,31 @@ F:	arch/arm/mach-exynos/
 F:	arch/arm/mach-s5pc1xx/
 F:	arch/arm/cpu/armv7/s5p-common/
 
+ARM SAMSUNG CLOCK
+M:	Sam Protsenko <semen.protsenko@linaro.org>
+S:	Maintained
+F:	drivers/clk/exynos/clk-pll.c
+F:	drivers/clk/exynos/clk-pll.h
+F:	drivers/clk/exynos/clk.c
+F:	drivers/clk/exynos/clk.h
+
+ARM SAMSUNG EXYNOS850 SOC
+M:	Sam Protsenko <semen.protsenko@linaro.org>
+S:	Maintained
+F:	arch/arm/dts/exynos850-pinctrl.dtsi
+F:	arch/arm/dts/exynos850.dtsi
+F:	doc/device-tree-bindings/clock/samsung,exynos850-clock.yaml
+F:	drivers/clk/exynos/clk-exynos850.c
+F:	drivers/pinctrl/exynos/pinctrl-exynos850.c
+F:	include/dt-bindings/clock/exynos850.h
+
+ARM SAMSUNG SOC DRIVERS
+M:	Sam Protsenko <semen.protsenko@linaro.org>
+S:	Maintained
+F:	doc/device-tree-bindings/soc/samsung/*
+F:	drivers/soc/samsung/*
+F:	include/dt-bindings/soc/samsung,*.h
+
 ARM SANCLOUD
 M:	Paul Barker <paul.barker@sancloud.com>
 R:	Marc Murphy <marc.murphy@sancloud.com>