Tweak spl/u-boot for Portenta-X8 to override global and board Makefile

Author: MaxPayne86

meta-arduino-bsp/recipes-bsp/u-boot/u-boot-imx_%.bbappend

@@ -2,6 +2,7 @@ FILESEXTRAPATHS:prepend := "${THISDIR}/${PN}:"
 
 SRC_URI:append:portenta-x8 = " \
     file://Makefile \
+    file://board/Makefile \
     file://imx8mm_evk_defconfig \
     file://imx8mm-evk.dts \
     file://imx8mm-evk.dtsi \
@@ -19,7 +20,10 @@ do_override_files_portenta_x8 () {
     bbwarn Overriding files for ${MACHINE}
 
     # Override Makefile
-    cp ${WORKDIR}/Makefile ${S}/board/freescale/imx8mm_evk/Makefile
+    cp ${WORKDIR}/Makefile ${S}/arch/arm/dts/Makefile
+
+    # Override Board Makefile
+    cp ${WORKDIR}/board/Makefile ${S}/board/freescale/imx8mm_evk/Makefile
 
     # @TODO: inspect UBOOT_CONFIG_BASENAME for defconfig in use
     cp ${WORKDIR}/imx8mm_evk_defconfig ${S}/configs/imx8mm_evk_defconfig