clk: imx6sll: Fix mispelling uart4_serial as serail

This looks like a copy-paste error. This string is not referenced
anywhere so it's safe to rename it.
Signed-off-by: NLeonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: NStephen Boyd <sboyd@kernel.org>

drivers/clk/imx/clk-imx6sll.c

@@ -268,7 +268,7 @@ static void __init imx6sll_clocks_init(struct device_node *ccm_node)
 	clks[IMX6SLL_CLK_GPT_BUS]	= imx_clk_gate2("gpt1_bus",	"perclk", base + 0x6c, 20);
 	clks[IMX6SLL_CLK_GPT_SERIAL]	= imx_clk_gate2("gpt1_serial",	"perclk", base + 0x6c, 22);
 	clks[IMX6SLL_CLK_UART4_IPG]	= imx_clk_gate2("uart4_ipg",	"ipg", base + 0x6c, 24);
-	clks[IMX6SLL_CLK_UART4_SERIAL]	= imx_clk_gate2("uart4_serail",	"uart_podf", base + 0x6c, 24);
+	clks[IMX6SLL_CLK_UART4_SERIAL]	= imx_clk_gate2("uart4_serial",	"uart_podf", base + 0x6c, 24);
 	clks[IMX6SLL_CLK_GPIO1]		= imx_clk_gate2("gpio1",	"ipg", base + 0x6c, 26);
 	clks[IMX6SLL_CLK_GPIO5]		= imx_clk_gate2("gpio5",	"ipg", base + 0x6c, 30);