dmaengine: add Frank Li as reviewer

Frank Li maintains the Freescale eDMA driver, has worked on DW eDMA
improvements, and actively helps review DMA-related code.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20260130042039.1842939-1-Frank.Li@nxp.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

Author: nxpfrankli

MAINTAINERS

@@ -7424,6 +7424,7 @@ K:	\bdma_(?:buf|fence|resv)\b
 
 DMA GENERIC OFFLOAD ENGINE SUBSYSTEM
 M:	Vinod Koul <vkoul@kernel.org>
+R:	Frank Li <Frank.Li@kernel.org>
 L:	dmaengine@vger.kernel.org
 S:	Maintained
 Q:	https://patchwork.kernel.org/project/linux-dmaengine/list/