st,decrease-hs-slew-rate is described in phy-stm32-usbphyc.yaml. Then
fix the property name in driver.

Fixes: 2f5e9f815a2f ("phy: stm32: add phy tuning support")
Signed-off-by: Amelie Delaunay <amelie.delaunay@foss.st.com>
---
  drivers/phy/st/phy-stm32-usbphyc.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/phy/st/phy-stm32-usbphyc.c b/drivers/phy/st/phy-stm32-usbphyc.c
index 7df6a63ad37b..e4f4a9be5132 100644
--- a/drivers/phy/st/phy-stm32-usbphyc.c
+++ b/drivers/phy/st/phy-stm32-usbphyc.c

@@ -478,7 +478,7 @@ static void stm32_usbphyc_phy_tuning(struct stm32_usbphyc *usbphyc,
  	if (!of_property_read_bool(np, "st,no-lsfs-fb-cap"))
  		usbphyc_phy->tune |= LFSCAPEN;
  
-	if (of_property_read_bool(np, "st,slow-hs-slew-rate"))
+	if (of_property_read_bool(np, "st,decrease-hs-slew-rate"))
  		usbphyc_phy->tune |= HSDRVSLEW;
  
  	ret = of_property_read_u32(np, "st,tune-hs-dc-level", &val);