uboot-tegra: Set UBOOT_USE_INTREE_DTC

U-Boot 2024.04 for tegra needs swig installed on the host, this
dependency is only checked if UBOOT_USE_INTREE_DTC is set. add the
missing definition.

Fixes: 6832faf3407e ("uboot-tegra: bump version to 2024.04")
Signed-off-by: Hauke Mehrtens <[email protected]>

package/boot/uboot-tegra/Makefile

@@ -13,6 +13,8 @@ PKG_HASH := 18a853fe39fad7ad03a90cc2d4275aeaed6da69735defac3492b80508843dd4a
 
 PKG_MAINTAINER := Tomasz Maciej Nowak <[email protected]>
 
+UBOOT_USE_INTREE_DTC:=1
+
 include $(INCLUDE_DIR)/u-boot.mk
 include $(INCLUDE_DIR)/package.mk