phy: samsung-ufs: Fix IS_ERR argument

Fix IS_ERR argument in samsung_ufs_phy_symbol_clk_init(). The proper
argument to be passed to IS_ERR() is phy->rx1_symbol_clk.

This bug was detected with the help of Coccinelle.

Fixes: bca21e930451 ("phy: samsung-ufs: add UFS PHY driver for samsung SoC")
Signed-off-by: Gustavo A. R. Silva <[e-mail]>
Reviewed-by: Alim Akhtar <[e-mail]>
Link: https://lore.kernel.org/r/20200720132718.GA13413@embeddedor
Signed-off-by: Vinod Koul <[e-mail]>

drivers/phy/samsung/phy-samsung-ufs.c

···
 	}
 
 	phy->rx1_symbol_clk = devm_clk_get(phy->dev, "rx1_symbol_clk");
-	if (IS_ERR(phy->rx0_symbol_clk)) {
+	if (IS_ERR(phy->rx1_symbol_clk)) {
 		dev_err(phy->dev, "failed to get rx1_symbol_clk clock\n");
 		return PTR_ERR(phy->rx1_symbol_clk);
 	}