Set alignment mode to unaligned on CIK to align with amdgpu.  This is
needed for unaligned loads to work properly in mesa.  The current setting
requires dword alignment.
Signed-off-by: NMarek Olšák <marek.olsak@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>