Kconfig: i2c: Fix typo Suport -> Support

Fix typo in command description.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/i2c/muxes/Kconfig b/drivers/i2c/muxes/Kconfig
index bd3e078..4051923 100644
--- a/drivers/i2c/muxes/Kconfig
+++ b/drivers/i2c/muxes/Kconfig
@@ -1,5 +1,5 @@
 config I2C_MUX
-	bool "Suport I2C multiplexers"
+	bool "Support I2C multiplexers"
 	depends on DM_I2C
 	help
 	  This enables I2C buses to be multiplexed, so that you can select