Add doltool and script to convert linux kernel to .dol executable

Dockerfile

@@ -36,20 +36,30 @@ RUN git clone https://github.com/fail0verflow/bootmii-utils.git /build/bootmii-u
     git checkout a32b8f6520d136677213fcbb730035a7e89567e2 && \
     make
 
+RUN git clone https://github.com/nullgemm/doltool.git /build/doltool && \
+    cd /build/doltool && \
+    git checkout 716ca5390bb6467689165db595079e84c80b9b46 && \
+    make
+
 ## final build image
-FROM  ubuntu:${VARIANT}
+FROM ubuntu:${VARIANT}
 ENV DEBIAN_FRONTEND="noninteractive"
 
 RUN apt-get update && \
     apt-get -y install \
         patch ninja-build make bc ccache gcc libncurses-dev \
-        kmod bison flex libssl-dev openssl
+        kmod bison flex libssl-dev openssl binutils-powerpc-linux-gnu
+
+RUN mkdir -p /usr/local/doltool/bin
+ADD makedol.sh /usr/local/doltool/bin/makedol.sh
 
 COPY --from=build /root/x-tools/powerpc-unknown-linux-gnu/ /usr/local/crosstool
 COPY --from=build /build/hbc/channel/wiiload/wiiload /usr/local/crosstool/bin/wiiload
 COPY --from=build /build/bootmii-utils/client/bootmii /usr/local/crosstool/bin/bootmii
+COPY --from=build /build/doltool/doltool /usr/local/doltool/bin/doltool
 
 ENV PATH=/usr/local/crosstool/bin:$PATH
+ENV PATH=/usr/local/doltool/bin:$PATH
 ENV CROSS_COMPILE=powerpc-unknown-linux-gnu-
 ENV CC=powerpc-unknown-linux-gnu-gcc
 ENV ARCH=powerpc