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>

pkgs/development/tools/build-managers/boot/builder.sh

@@ -0,0 +1,13 @@
+source $stdenv/setup
+
+boot_bin=$out/bin/boot
+
+mkdir -pv $(dirname $boot_bin)
+cp -v $src $boot_bin
+chmod -v 755 $boot_bin
+
+patchShebangs $boot_bin
+
+sed -i \
+    -e "s;\${BOOT_JAVA_COMMAND:-java};\${BOOT_JAVA_COMMAND:-${jdk}/bin/java};g" \
+    $boot_bin