i2c: exynos5: Mention Exynos850 and ExynosAutoV9 in Kconfig

I2C controller chosen by I2C_EXYNOS5 config option is also suitable for
Exynos850 and ExynosAutoV9 SoCs. State that specifically in I2C_EXYNOS5
symbol help section.

Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Chanho Park <chanho61.park@samsung.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>

Author: Sam Protsenko

drivers/i2c/busses/Kconfig

@@ -617,7 +617,7 @@ config I2C_EXYNOS5
 	help
 	  High-speed I2C controller on Samsung Exynos5 and newer Samsung SoCs:
 	  Exynos5250, Exynos5260, Exynos5410, Exynos542x, Exynos5800,
-	  Exynos5433 and Exynos7.
+	  Exynos5433, Exynos7, Exynos850 and ExynosAutoV9.
 	  Choose Y here only if you build for such Samsung SoC.
 
 config I2C_GPIO