tests: Fix guix-system.sh test.

The regression was introduce with commit
c7793b82efd3383a9f7adf0dfa82d71ee032e41b ("gnu: raspberry-pi: Add a
bootloader-chain for the Raspberry Pi and os examples.") due to the examples
needing to be built for the aarch64-linux system.

* tests/guix-system.sh: Invoke guix system build with '--system=aarch64-linux'
to build the Raspberry Pi systems.

1 files changed, 4 insertions, 0 deletions

diff --git a/tests/guix-system.sh b/tests/guix-system.sh
index a59bd9a6b91..16c02e6e4c9 100644
--- a/tests/guix-system.sh
+++ b/tests/guix-system.sh
@@ -342,6 +342,10 @@ for example in gnu/system/examples/*.tmpl; do
             # 'asus-c201.tmpl' uses 'linux-libre-arm-generic', which is an
             # ARM-only package.
             options="--system=armhf-linux";;
+        *raspberry*)
+            # The Raspberry Pi templates 'linux-libre-arm64-generic', which is
+            # an ARM-only package.
+            options="--system=aarch64-linux";;
         *vm-image*)
             # The VM image tries to build 'current-guix' as per 'guix pull'.
             # Skip it.