If we want to build this container on non-x86 systems we might not
have all the cross-compilers needed for the ROM blobs we don't
actually build. Use --arch-only to avoid stalling on these missing
bits.

Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-ID: <20250725154517.3523095-13-alex.bennee@linaro.org>

diff --git a/tests/docker/dockerfiles/debian-all-test-cross.docker b/tests/docker/dockerfiles/debian-all-test-cross.docker
index 8ab244e018a..5aa43749ebe 100644
--- a/tests/docker/dockerfiles/debian-all-test-cross.docker
+++ b/tests/docker/dockerfiles/debian-all-test-cross.docker
@@ -15,7 +15,7 @@ RUN export DEBIAN_FRONTEND=noninteractive && \
     apt-get update && \
     apt-get install -y eatmydata && \
     eatmydata apt-get dist-upgrade -y && \
-    apt build-dep -yy qemu
+    apt build-dep -yy --arch-only qemu
 
 # Add extra build tools and as many cross compilers as we can for testing
 RUN DEBIAN_FRONTEND=noninteractive eatmydata \
-- 
2.47.2