phy: cadence: Sierra: Add missing clk_disable_unprepare() in .remove callback

commit 44d30d62 ("phy: cadence: Add driver for Sierra PHY") enabled
the clock in probe and failed to disable in remove callback. Add missing
clk_disable_unprepare() in cdns_sierra_phy_remove().

Fixes: 44d30d62 ("phy: cadence: Add driver for Sierra PHY")
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Link: https://lore.kernel.org/r/20210319124128.13308-11-kishon@ti.comSigned-off-by: Vinod Koul <vkoul@kernel.org>

drivers/phy/cadence/phy-cadence-sierra.c

@@ -689,6 +689,9 @@ static int cdns_sierra_phy_remove(struct platform_device *pdev)
 		reset_control_assert(phy->phys[i].lnk_rst);
 		reset_control_put(phy->phys[i].lnk_rst);
 	}
+
+	clk_disable_unprepare(phy->input_clks[PHY_CLK]);
+
 	return 0;
 }