net: dwc_eth_qos: Move log_debug statements on top of case block

Move the log_debug() calls on top of the bit manipulation code.
No functional change.

Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Signed-off-by: Marek Vasut <marex@denx.de>
diff --git a/drivers/net/dwc_eth_qos_stm32.c b/drivers/net/dwc_eth_qos_stm32.c
index 7545026..38037c4 100644
--- a/drivers/net/dwc_eth_qos_stm32.c
+++ b/drivers/net/dwc_eth_qos_stm32.c
@@ -143,34 +143,34 @@
 
 	switch (interface_type) {
 	case PHY_INTERFACE_MODE_MII:
+		log_debug("PHY_INTERFACE_MODE_MII\n");
 		value = FIELD_PREP(SYSCFG_PMCSETR_ETH_SEL_MASK,
 				   SYSCFG_PMCSETR_ETH_SEL_GMII_MII);
 		value |= SYSCFG_PMCSETR_ETH_REF_CLK_SEL;
-		log_debug("PHY_INTERFACE_MODE_MII\n");
 		break;
 	case PHY_INTERFACE_MODE_GMII:
+		log_debug("PHY_INTERFACE_MODE_GMII\n");
 		value = FIELD_PREP(SYSCFG_PMCSETR_ETH_SEL_MASK,
 				   SYSCFG_PMCSETR_ETH_SEL_GMII_MII);
 		if (eth_clk_sel_reg)
 			value |= SYSCFG_PMCSETR_ETH_CLK_SEL;
-		log_debug("PHY_INTERFACE_MODE_GMII\n");
 		break;
 	case PHY_INTERFACE_MODE_RMII:
+		log_debug("PHY_INTERFACE_MODE_RMII\n");
 		value = FIELD_PREP(SYSCFG_PMCSETR_ETH_SEL_MASK,
 				   SYSCFG_PMCSETR_ETH_SEL_RMII);
 		if (eth_ref_clk_sel_reg)
 			value |= SYSCFG_PMCSETR_ETH_REF_CLK_SEL;
-		log_debug("PHY_INTERFACE_MODE_RMII\n");
 		break;
 	case PHY_INTERFACE_MODE_RGMII:
 	case PHY_INTERFACE_MODE_RGMII_ID:
 	case PHY_INTERFACE_MODE_RGMII_RXID:
 	case PHY_INTERFACE_MODE_RGMII_TXID:
+		log_debug("PHY_INTERFACE_MODE_RGMII\n");
 		value = FIELD_PREP(SYSCFG_PMCSETR_ETH_SEL_MASK,
 				   SYSCFG_PMCSETR_ETH_SEL_RGMII);
 		if (eth_clk_sel_reg)
 			value |= SYSCFG_PMCSETR_ETH_CLK_SEL;
-		log_debug("PHY_INTERFACE_MODE_RGMII\n");
 		break;
 	default:
 		log_debug("Do not manage %d interface\n",