Fix lan8720 phy would sometimes not initialize

qthing/network/ethernet_lan8720.cpp

@@ -51,8 +51,8 @@ void qthing::enable_ethernet_lan8720() {
   gpio_pad_select_gpio(PIN_PHY_POWER);
   gpio_set_direction(PIN_PHY_POWER, GPIO_MODE_OUTPUT);
   gpio_set_level(PIN_PHY_POWER, 1);
-  // Allow the power up/down to take effect, min 300us
-  vTaskDelay(1);
+  // Allow the power up/down to take effect by waiting two ticks (one tick should suffice for gpio changes but showed to be problematic)
+  vTaskDelay(2);
 
   try {
     // Not required here, happens in qthing::initialize_network();