drm/amdgpu: fix typo in amdgpu_ras_aca_sysfs_read() function

fix typo "info.ue_count" in amdgpu_ras_aca_sysfs_read() function.

Fixes: 865d3397 ("drm/amdgpu: add aca deferred error type support")
Signed-off-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>