scsi: vmw_pvscsi: No need to clear memory after a dma_alloc_coherent() call

dma_alloc_coherent() already clear the allocated memory, there is no need
to explicitly call memset().

Since 'config_page' and 'header' are the same, a memset() call can be
avoided.

Link: https://lore.kernel.org/r/cd1220c628[e-mail]
Signed-off-by: Christophe JAILLET <[e-mail]>
Signed-off-by: Martin K. Petersen <[e-mail]>

drivers/scsi/vmw_pvscsi.c

···
 	 * indicate success.
 	 */
 	header = config_page;
-	memset(header, 0, sizeof *header);
 	header->hostStatus = BTSTAT_INVPARAM;
 	header->scsiStatus = SDSTAT_CHECK;