scsi: ufs: Remove duplicate include in ufshcd

'blkdev.h' included in 'ufshcd.c' is included twice.

Link: https://lore.kernel.org/r/20210306114706.217873-1-zhang.yunkai@zte.com.cn


Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Zhang Yunkai <zhang.yunkai@zte.com.cn>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>