scripts/mkimg.arm: fix uboot

ref #7181

scripts/mkimg.arm.sh

@@ -58,10 +58,11 @@ profile_rpi() {
 }
 
 build_uboot() {
+	set -x
 	# FIXME: Fix apk-tools to extract packages directly
-	local pkg pkgs="$(apk fetch  --simulate --root /tmp/timo/apkroot-armhf/ --recursive u-boot-all | sed -ne "s/^Downloading \([^0-9.]*\)\-.*$/\1/p")"
+	local pkg pkgs="$(apk fetch  --simulate --root "$APKROOT" --recursive u-boot-all | sed -ne "s/^Downloading \([^0-9.]*\)\-.*$/\1/p")"
 	for pkg in $pkgs; do
-		[ "$pkg" == "u-boot-all" ] || apk fetch --root "$APKROOT" --stdout $pkg | tar -C "$DESTDIR" -xz usr
+		[ "$pkg" = "u-boot-all" ] || apk fetch --root "$APKROOT" --stdout $pkg | tar -C "$DESTDIR" -xz usr
 	done
 	mkdir -p "$DESTDIR"/u-boot
 	mv "$DESTDIR"/usr/sbin/update-u-boot "$DESTDIR"/usr/share/u-boot/* "$DESTDIR"/u-boot