esp_phy_get_init_data() function

Get PHY init data If "Use a partition to store PHY init data" option is set in menuconfig, This function will load PHY init data from a partition. Otherwise, PHY init data will be compiled into the application itself, and this function will return a pointer to PHY init data located in read-only memory (DROM). If "Use a partition to store PHY init data" option is enabled, this function may return NULL if the data loaded from flash is not valid.