dmaengine: Update email address for Vinod

Update the email address for DMAengine maintainer

Signed-off-by: Vinod Koul <vkoul@kernel.org>

MAINTAINERS

@@ -4305,7 +4305,7 @@ F:	Documentation/driver-api/dma-buf.rst
 T:	git git://anongit.freedesktop.org/drm/drm-misc
 
 DMA GENERIC OFFLOAD ENGINE SUBSYSTEM
-M:	Vinod Koul <vinod.koul@intel.com>
+M:	Vinod Koul <vkoul@kernel.org>
 L:	dmaengine@vger.kernel.org
 Q:	https://patchwork.kernel.org/project/linux-dmaengine/list/
 S:	Maintained