dmaengine: fsl-dpaa2-qdma: add missing MODULE_DESCRIPTION() macro

With ARCH=arm64, make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/dma/fsl-dpaa2-qdma/dpdmai.o

Add the missing invocation of the MODULE_DESCRIPTION() macro.

Signed-off-by: Jeff Johnson <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Vinod Koul <[e-mail]>

drivers/dma/fsl-dpaa2-qdma/dpdmai.c

···
 }
 EXPORT_SYMBOL_GPL(dpdmai_get_tx_queue);
 
+MODULE_DESCRIPTION("NXP DPAA2 QDMA driver");
 MODULE_LICENSE("GPL v2");