DMA engine: typo fixes

Spelling fixes for dmaengine.[ch]

Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de>
Acked-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
2 files changed