pitx-imx8m: reconfigure GBE0 PHY activity LED2

- Set the LED_2_SEL bits [11:8] in DP83867IR LED Configuration
  Register 1 to 0b1011 (link established, blink on activity) from
  default value 0b0001. Same settings are configured for GBE1 PHY
  when I210/I211 is activated in linux.
- This fixes KDP#81891 request for the pITX-iMX8M.
Signed-off-by: Thomas Schaefer <thomas.schaefer@kontron.com>

board/kontron/pitx-imx8m/pitx-imx8m.c

@@ -151,6 +151,8 @@ static int setup_fec(void)
 
 int board_phy_config(struct phy_device *phydev)
 {
+	unsigned int val;
+
 	/* enable rgmii rxc skew and phy mode select to RGMII copper */
 	phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x1f);
 	phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x8);
@@ -158,6 +160,14 @@ int board_phy_config(struct phy_device *phydev)
 	phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x05);
 	phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x100);
 
+	/*
+	 * Set LED configuration register 1:
+	 * LED2_SEL: 0b1011 (link established, blink on activity)
+	 */
+	val = phy_read(phydev, MDIO_DEVAD_NONE, 0x18);
+	val &= 0xf0ff;
+	phy_write(phydev, MDIO_DEVAD_NONE, 0x18, val | (0xb<<8));
+
 	if (phydev->drv->config)
 		phydev->drv->config(phydev);