dmaengine: ti: cppi41: add missing MODULE_DESCRIPTION() macro

With ARCH=arm, make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/dma/ti/cppi41.o

Add the missing invocation of the MODULE_DESCRIPTION() macro.

Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://lore.kernel.org/r/20240615-md-arm-drivers-dma-ti-v1-1-496d243158dd@quicinc.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

Author: jeff-t-johnson

drivers/dma/ti/cppi41.c

@@ -1252,5 +1252,6 @@ static struct platform_driver cpp41_dma_driver = {
 };
 
 module_platform_driver(cpp41_dma_driver);
+MODULE_DESCRIPTION("Texas Instruments CPPI 4.1 DMA support");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Sebastian Andrzej Siewior <bigeasy@linutronix.de>");