dmaengine: hsu: don't prompt for hsu_core part

HSU_DMA is selected by the HSU_DMA_PCI driver, this should be user selected
so remove the user prompt for this
Signed-off-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

drivers/dma/hsu/Kconfig

 # DMA engine configuration for hsu
 config HSU_DMA
-	tristate "High Speed UART DMA support"
+	tristate
 	select DMA_ENGINE
 	select DMA_VIRTUAL_CHANNELS