imx8mp_evk: Remove EQoS PHY reset codes

Since we uses the DTS and PHY reset gpio in EQoS driver to do the
reset, remove the duplicated codes from board file.
Signed-off-by: NYe Li <ye.li@nxp.com>

board/freescale/imx8mp_evk/imx8mp_evk.c

@@ -54,30 +54,11 @@ static void setup_fec(void)
 	setbits_le32(&gpr->gpr[1], BIT(22));
 }
 
-#define EQOS_RST_PAD IMX_GPIO_NR(4, 22)
-static iomux_v3_cfg_t const eqos_rst_pads[] = {
-	MX8MP_PAD_SAI2_RXC__GPIO4_IO22 | MUX_PAD_CTRL(NO_PAD_CTRL),
-};
-
-static void setup_iomux_eqos(void)
-{
-	imx_iomux_v3_setup_multiple_pads(eqos_rst_pads,
-					 ARRAY_SIZE(eqos_rst_pads));
-
-	gpio_request(EQOS_RST_PAD, "eqos_rst");
-	gpio_direction_output(EQOS_RST_PAD, 0);
-	mdelay(15);
-	gpio_direction_output(EQOS_RST_PAD, 1);
-	mdelay(100);
-}
-
 static int setup_eqos(void)
 {
 	struct iomuxc_gpr_base_regs *gpr =
 		(struct iomuxc_gpr_base_regs *)IOMUXC_GPR_BASE_ADDR;
 
-	setup_iomux_eqos();
-
 	/* set INTF as RGMII, enable RGMII TXC clock */
 	clrsetbits_le32(&gpr->gpr[1],
 			IOMUXC_GPR_GPR1_GPR_ENET_QOS_INTF_SEL_MASK, BIT(16));