soc: samsung: Fix typo in CONFIG_EXYNOS_USI description

The proper name is Exynos Auto V9, not V0. It was the typo slipped in
unnoticed, fix it.

Fixes: b603377e40 ("soc: samsung: Add USI driver")
Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Chanho Park <chanho61.park@samsung.com>
Link: https://lore.kernel.org/r/20220114144606.24358-1-semen.protsenko@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>

drivers/soc/samsung/Kconfig

@@ -31,7 +31,7 @@ config EXYNOS_USI
 	help
 	  Enable support for USI block. USI (Universal Serial Interface) is an
 	  IP-core found in modern Samsung Exynos SoCs, like Exynos850 and
-	  ExynosAutoV0. USI block can be configured to provide one of the
+	  ExynosAutoV9. USI block can be configured to provide one of the
 	  following serial protocols: UART, SPI or High Speed I2C.
 
 	  This driver allows one to configure USI for desired protocol, which