[PATCH] drm/tests: Switch to kunit devices

[kernel test robot]

Hi Maxime,

kernel test robot noticed the following build errors:

[auto build test ERROR on next-20231205]
[cannot apply to drm-misc/drm-misc-next v6.7-rc4 v6.7-rc3 v6.7-rc2 linus/master v6.7-rc4]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Maxime-Ripard/drm-tests-Switch-to-kunit-devices/20231205-170508
base:   next-20231205
patch link:    https://lore.kernel.org/r/20231205090405.153140-1-mripard%40kernel.org
patch subject: [PATCH] drm/tests: Switch to kunit devices
config: i386-buildonly-randconfig-004-20231206 (https://download.01.org/0day-ci/archive/20231207/202312070011.fDjYhKoz-lkp@intel.com/config)
compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231207/202312070011.fDjYhKoz-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202312070011.fDjYhKoz-lkp@intel.com/

All errors (new ones prefixed by >>):

>> drivers/gpu/drm/tests/drm_kunit_helpers.c:8:10: fatal error: 'kunit/device.h' file not found
   #include <kunit/device.h>
            ^~~~~~~~~~~~~~~~
   1 error generated.


vim +8 drivers/gpu/drm/tests/drm_kunit_helpers.c

     7	
   > 8	#include <kunit/device.h>
     9	#include <kunit/resource.h>
    10	

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