dmaengine: hidma: In hidma_prep_dma_memset treat value as a single byte

The value parameter is a single byte, so duplicate it to the 8 byte
range that is used as the pattern.

Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Cc: Sinan Kaya <okaya@kernel.org>
Link: https://lore.kernel.org/r/20220301182551.883474-5-benjamin.walker@intel.com


Signed-off-by: Vinod Koul <vkoul@kernel.org>