dmaengine: Fix misspelling of "Analog Devices"

According to https://www.analog.com/

, the company name is spelled
"Analog Devices".

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Link: https://lore.kernel.org/r/20200416103058.15269-3-geert+renesas@glider.be


[vkoul: make subsystem name dmaengine]
Signed-off-by: Vinod Koul <vkoul@kernel.org>