board: phytec: common: k3: Factor out mac address setup

Factor out the mac address setup into setup_mac_from_eeprom().

Signed-off-by: Wadim Egorov <w.egorov@phytec.de>
diff --git a/board/phytec/common/k3/board.c b/board/phytec/common/k3/board.c
index 755b9ec..d9aec16 100644
--- a/board/phytec/common/k3/board.c
+++ b/board/phytec/common/k3/board.c
@@ -176,30 +176,34 @@
 	env_set("boot_targets", boot_targets);
 }
 
-int board_late_init(void)
+static void setup_mac_from_eeprom(void)
 {
-	boot_targets_setup();
+	struct phytec_api3_element *block_element;
+	struct phytec_eeprom_data data;
+	int ret;
 
-	if (IS_ENABLED(CONFIG_PHYTEC_SOM_DETECTION_BLOCKS)) {
-		struct phytec_api3_element *block_element;
-		struct phytec_eeprom_data data;
-		int ret;
+	ret = phytec_eeprom_data_setup(&data, 0, EEPROM_ADDR);
+	if (ret || !data.valid)
+		return;
 
-		ret = phytec_eeprom_data_setup(&data, 0, EEPROM_ADDR);
-		if (ret || !data.valid)
-			return 0;
-
-		PHYTEC_API3_FOREACH_BLOCK(block_element, &data) {
-			switch (block_element->block_type) {
-			case PHYTEC_API3_BLOCK_MAC:
-				phytec_blocks_add_mac_to_env(block_element);
-				break;
-			default:
-				debug("%s: Unknown block type %i\n", __func__,
-				      block_element->block_type);
-			}
+	PHYTEC_API3_FOREACH_BLOCK(block_element, &data) {
+		switch (block_element->block_type) {
+		case PHYTEC_API3_BLOCK_MAC:
+			phytec_blocks_add_mac_to_env(block_element);
+			break;
+		default:
+			debug("%s: Unknown block type %i\n", __func__,
+			      block_element->block_type);
 		}
 	}
+}
+
+int board_late_init(void)
+{
+	boot_targets_setup();
+
+	if (IS_ENABLED(CONFIG_PHYTEC_SOM_DETECTION_BLOCKS))
+		setup_mac_from_eeprom();
 
 #if IS_ENABLED(CONFIG_EFI_HAVE_CAPSULE_SUPPORT)
 	configure_capsule_updates();