drm: amdgpu: fix a kernel-doc markup

The function name at kernel-doc markup doesn't match the name
of the function:

	drivers/gpu/drm/amd/amdgpu/amdgpu_object.c:1534: warning: expecting prototype for amdgpu_debugfs_print_bo_info(). Prototype was for amdgpu_bo_print_info() instead

Fix it.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>