uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

nixos/lib/make-iso9660-image.sh

@@ -0,0 +1,139 @@
+source $stdenv/setup
+
+sources_=($sources)
+targets_=($targets)
+
+objects=($objects)
+symlinks=($symlinks)
+
+
+# Remove the initial slash from a path, since genisofs likes it that way.
+stripSlash() {
+    res="$1"
+    if test "${res:0:1}" = /; then res=${res:1}; fi
+}
+
+# Escape potential equal signs (=) with backslash (\=)
+escapeEquals() {
+    echo "$1" | sed -e 's/\\/\\\\/g' -e 's/=/\\=/g'
+}
+
+# Queues an file/directory to be placed on the ISO.
+# An entry consists of a local source path (2) and
+# a destination path on the ISO (1).
+addPath() {
+    target="$1"
+    source="$2"
+    echo "$(escapeEquals "$target")=$(escapeEquals "$source")" >> pathlist
+}
+
+stripSlash "$bootImage"; bootImage="$res"
+
+
+if test -n "$bootable"; then
+
+    # The -boot-info-table option modifies the $bootImage file, so
+    # find it in `contents' and make a copy of it (since the original
+    # is read-only in the Nix store...).
+    for ((i = 0; i < ${#targets_[@]}; i++)); do
+        stripSlash "${targets_[$i]}"
+        if test "$res" = "$bootImage"; then
+            echo "copying the boot image ${sources_[$i]}"
+            cp "${sources_[$i]}" boot.img
+            chmod u+w boot.img
+            sources_[$i]=boot.img
+        fi
+    done
+
+    isoBootFlags="-eltorito-boot ${bootImage}
+                  -eltorito-catalog .boot.cat
+                  -no-emul-boot -boot-load-size 4 -boot-info-table
+                  --sort-weight 1 /isolinux" # Make sure isolinux is near the beginning of the ISO
+fi
+
+if test -n "$usbBootable"; then
+    usbBootFlags="-isohybrid-mbr ${isohybridMbrImage}"
+fi
+
+if test -n "$efiBootable"; then
+    efiBootFlags="-eltorito-alt-boot
+                  -e $efiBootImage
+                  -no-emul-boot
+                  -isohybrid-gpt-basdat"
+fi
+
+touch pathlist
+
+
+# Add the individual files.
+for ((i = 0; i < ${#targets_[@]}; i++)); do
+    stripSlash "${targets_[$i]}"
+    addPath "$res" "${sources_[$i]}"
+done
+
+
+# Add the closures of the top-level store objects.
+for i in $(< $closureInfo/store-paths); do
+    addPath "${i:1}" "$i"
+done
+
+
+# Also include a manifest of the closures in a format suitable for
+# nix-store --load-db.
+if [[ ${#objects[*]} != 0 ]]; then
+    cp $closureInfo/registration nix-path-registration
+    addPath "nix-path-registration" "nix-path-registration"
+fi
+
+
+# Add symlinks to the top-level store objects.
+for ((n = 0; n < ${#objects[*]}; n++)); do
+    object=${objects[$n]}
+    symlink=${symlinks[$n]}
+    if test "$symlink" != "none"; then
+        mkdir -p $(dirname ./$symlink)
+        ln -s $object ./$symlink
+        addPath "$symlink" "./$symlink"
+    fi
+done
+
+mkdir -p $out/iso
+
+# daed2280-b91e-42c0-aed6-82c825ca41f3 is an arbitrary namespace, to prevent
+# independent applications from generating the same UUID for the same value.
+# (the chance of that being problematic seem pretty slim here, but that's how
+# version-5 UUID's work)
+xorriso="xorriso
+ -boot_image any gpt_disk_guid=$(uuid -v 5 daed2280-b91e-42c0-aed6-82c825ca41f3 $out | tr -d -)
+ -volume_date all_file_dates =$SOURCE_DATE_EPOCH
+ -as mkisofs
+ -iso-level 3
+ -volid ${volumeID}
+ -appid nixos
+ -publisher nixos
+ -graft-points
+ -full-iso9660-filenames
+ -joliet
+ ${isoBootFlags}
+ ${usbBootFlags}
+ ${efiBootFlags}
+ -r
+ -path-list pathlist
+ --sort-weight 0 /
+"
+
+$xorriso -output $out/iso/$isoName
+
+if test -n "$compressImage"; then
+    echo "Compressing image..."
+    zstd -T$NIX_BUILD_CORES --rm $out/iso/$isoName
+fi
+
+mkdir -p $out/nix-support
+echo $system > $out/nix-support/system
+
+if test -n "$compressImage"; then
+    echo "file iso $out/iso/$isoName.zst" >> $out/nix-support/hydra-build-products
+else
+    echo "file iso $out/iso/$isoName" >> $out/nix-support/hydra-build-products
+fi