tests/functional: Convert the Avocado arm tuxrun tests

Move the tests to a new file so that they can be run via
qemu-system-arm in the functional framework.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20241011131937.377223-7-thuth@redhat.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index 055dae8..ffc50bc 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -987,6 +987,7 @@
 F: include/hw/arm/virt.h
 F: docs/system/arm/virt.rst
 F: tests/functional/test_aarch64_virt.py
+F: tests/functional/test_arm_tuxrun.py
 
 Xilinx Zynq
 M: Edgar E. Iglesias <edgar.iglesias@gmail.com>