Resolve "Logic to control eneta_resetn and enetb_resetn"

Reused logic from examples that controls enter_resetn and enetb_resetn.

I'm not really sure about this snippet of code from example. Do we need to add this to our project? Does hps_wrapper in our project is an analogue to this q_sys?

q_sys u0 (
    .sys_clk_clk                                (clk_50m_fpga),
	.clk_125m_clk                               (clk_enet_fpga_p), 
	.reset_0_reset_n                            (global_resetn),   
    .reset_reset_n                              (global_resetn),                    
	.led_pio_external_connection_export         (user_led),//led_pio),
    .eth_tse_serial_connection_txp              (eneta_tx_p),
    .eth_tse_serial_connection_rxp              (eneta_rx_p),		  
    .eth_tse_mac_mdio_connection_mdc            (eneta_mdc),
    .eth_tse_mac_mdio_connection_mdio_in        (mdio_in),
    .eth_tse_mac_mdio_connection_mdio_out       (mdio_out),
    .eth_tse_mac_mdio_connection_mdio_oen       (mdio_oen),
	.eth_tse_status_led_connection_crs          (),  
	.eth_tse_status_led_connection_link         (),
	.eth_tse_status_led_connection_col          (),
	.eth_tse_status_led_connection_an           (),
	.eth_tse_status_led_connection_char_err     (),
	.eth_tse_status_led_connection_disp_err     (),      
	.xcvr_atx_pll_pll_locked_pll_locked         (),   
	.xcvr_atx_pll_pll_cal_busy_pll_cal_busy     ()
);

Closes #2