Add KSZ8041 support (#6087)

Author: Darek7D

Diff for: libraries/Ethernet/src/ETH.cpp

@@ -281,6 +281,13 @@ bool ETHClass::begin(uint8_t phy_addr, int power, int mdc, int mdio, eth_phy_typ
             eth_phy = esp_eth_phy_new_dm9051(&phy_config);
             break;
 #endif
+        case ETH_PHY_KSZ8041:
+#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(4,4,0)
+            eth_phy = esp_eth_phy_new_ksz8041(&phy_config);
+#else
+            log_e("unsupported ethernet type 'ETH_PHY_KSZ8041'");
+#endif
+            break;
         case ETH_PHY_KSZ8081:
 #if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(4,4,0)
             eth_phy = esp_eth_phy_new_ksz8081(&phy_config);

Diff for: libraries/Ethernet/src/ETH.h

@@ -53,7 +53,7 @@
 typedef enum { ETH_CLOCK_GPIO0_IN, ETH_CLOCK_GPIO0_OUT, ETH_CLOCK_GPIO16_OUT, ETH_CLOCK_GPIO17_OUT } eth_clock_mode_t;
 #endif
 
-typedef enum { ETH_PHY_LAN8720, ETH_PHY_TLK110, ETH_PHY_RTL8201, ETH_PHY_DP83848, ETH_PHY_DM9051, ETH_PHY_KSZ8081, ETH_PHY_MAX } eth_phy_type_t;
+typedef enum { ETH_PHY_LAN8720, ETH_PHY_TLK110, ETH_PHY_RTL8201, ETH_PHY_DP83848, ETH_PHY_DM9051, ETH_PHY_KSZ8041, ETH_PHY_KSZ8081, ETH_PHY_MAX } eth_phy_type_t;
 #define ETH_PHY_IP101 ETH_PHY_TLK110
 
 class ETHClass {