dmaengine: sort the sh Makefile

Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
(cherry picked from commit 8a4ce226

)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>