ARM: AM57xx: Make FIT boot as default boot on HS devices

Verification has to be done before booting any images on HS devices. So
default the boot to FIT on HS devices.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>

board/ti/am57xx/board.c

@@ -386,6 +386,14 @@ int board_late_init(void)
 	 * This is the POWERHOLD-in-Low behavior.
 	 */
 	palmas_i2c_write_u8(TPS65903X_CHIP_P1, 0xA0, 0x1);
+
+	/*
+	 * Default FIT boot on HS devices. Non FIT images are not allowed
+	 * on HS devices.
+	 */
+	if (get_device_type() == HS_DEVICE)
+		setenv("boot_fit", "1");
+
 	return 0;
 }