Dockerfile: build qemu for Nokia n900

Using a pre-built QEMU saves a lot of time when testing.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

tools/docker/Dockerfile

@@ -186,6 +186,27 @@ RUN git clone https://gitlab.com/qemu-project/qemu.git /tmp/qemu && \
 	make -j$(nproc) all install && \
 	rm -rf /tmp/qemu
 
+# Build QEMU supporting Nokia n900 emulation
+RUN mkdir -p /opt/nokia && \
+	cd /tmp && \
+	git clone https://git.linaro.org/qemu/qemu-linaro.git && \
+	cd /tmp/qemu-linaro && \
+	git checkout 8f8d8e0796efe1a6f34cdd83fb798f3c41217ec1 && \
+	./configure --enable-system --target-list=arm-softmmu \
+	--python=/usr/bin/python2.7 --disable-sdl --disable-gtk \
+	--disable-curses --audio-drv-list= --audio-card-list= \
+	--disable-werror --disable-xen --disable-xen-pci-passthrough \
+	--disable-brlapi --disable-vnc --disable-curl --disable-slirp \
+	--disable-kvm --disable-user --disable-linux-user --disable-bsd-user \
+	--disable-guest-base --disable-uuid --disable-vde --disable-linux-aio \
+	--disable-cap-ng --disable-attr --disable-blobs --disable-docs \
+	--disable-spice --disable-libiscsi --disable-smartcard-nss \
+	--disable-usb-redir --disable-guest-agent --disable-seccomp \
+	--disable-glusterfs --disable-nptl --disable-fdt && \
+	make -j$(nproc) && \
+	cp /tmp/qemu-linaro/arm-softmmu/qemu-system-arm /opt/nokia && \
+	rm -rf /tmp/qemu-linaro
+
 # Build genimage (required by some targets to generate disk images)
 RUN wget -O - https://github.com/pengutronix/genimage/releases/download/v14/genimage-14.tar.xz | tar -C /tmp -xJ && \
 	cd /tmp/genimage-14 && \