configs: add VFIO_NOIOMMU supports for dpdk

Dpdk needs NOIOMMU mode for virtualization in Aliyun. It depends
on vfio in Alinux2.
With VFIO_NOIOMMU configured, NOIOMMU mode can be enabled by:
/sys/module/vfio/parameters/enable_unsafe_noiommu_mode. The default
is IOMMU mode.
Signed-off-by: NShile Zhang <shile.zhang@linux.alibaba.com>
Reviewed-by: NJoseph Qi <joseph.qi@linux.alibaba.com>

config-4.19.y-x86_64

@@ -3096,7 +3096,7 @@ CONFIG_SYNC_FILE=y
 CONFIG_VFIO_IOMMU_TYPE1=m
 CONFIG_VFIO_VIRQFD=m
 CONFIG_VFIO=m
-# CONFIG_VFIO_NOIOMMU is not set
+CONFIG_VFIO_NOIOMMU=y
 CONFIG_VFIO_PCI=m
 # CONFIG_VFIO_PCI_VGA is not set
 CONFIG_VFIO_PCI_MMAP=y

config-4.19.y-x86_64-debug

@@ -3098,7 +3098,7 @@ CONFIG_SYNC_FILE=y
 CONFIG_VFIO_IOMMU_TYPE1=m
 CONFIG_VFIO_VIRQFD=m
 CONFIG_VFIO=m
-# CONFIG_VFIO_NOIOMMU is not set
+CONFIG_VFIO_NOIOMMU=y
 CONFIG_VFIO_PCI=m
 # CONFIG_VFIO_PCI_VGA is not set
 CONFIG_VFIO_PCI_MMAP=y