Added EEH test cases for PCI PT NIC devices

Added 2 test cases
1. Inject EEH from host console for pci pt device
2. Inject EEH from guest console for pci pt device

Signed-off-by: Tasmiya Nalatwad <tasmiya@linux.vnet.ibm.com>

Author: TasmiyaNalatwad

libvirt/tests/cfg/passthrough/pci/libvirt_pci_passthrough_eeh.cfg

@@ -0,0 +1,51 @@
+- libvirt_pci_passthrough_eeh:
+    virt_test_type = libvirt
+    provider = io-github-autotest-libvirt
+    type = libvirt_pci_passthrough_eeh
+    iteration_val = 2
+    no s390-virtio
+    variants:
+        - Normal_passthrough:
+            libvirt_pci_SRIOV = no
+            # Removing SRIOV as of now, as curently we don't test this
+            # - SRIOV:
+            #     libvirt_pci_SRIOV = yes
+            #     vf_filter = "Virtual Function"
+            # Enter the no.of Virtual Function's to be cr
+            # for each Physical Function.
+            #     number_vfs = 4
+    variants:
+        - PCI_NIC:
+            libvirt_pci_device_type = "NIC"
+            # Please enter the PCI device label for
+            # a network device. We will attach this
+            # device to guest. Then this network device
+            # will be unavailable on host.
+            # E.g: 0000:05:00.0
+            libvirt_pci_net_dev_label = "ENTER.YOUR.PCI.LABEL"
+            libvirt_pci_net_dev_name = "ENTER.YOUR.DEVICE.NAME"
+            # Please enter the ip what is used by the device
+            # you are going to attach to guest.
+            libvirt_pci_net_ip = "ENTER.YOUR.IP"
+            # Please enter a available ip from the net device.
+            # We need to ping it after attaching pci device
+            # to guest to verify this device works well in guest.
+            libvirt_pci_server_ip = "ENTER.YOUR.SERVER.IP"
+            # Enter netmask in CIDR notation
+            libvirt_pci_net_mask = "ENTER.YOUR.NETMASK"
+            # enter timeout value
+            timeout = "ENTER.YOUR.TIMEOUT"
+            model = "ENTER.YOUR.DEVICE.MODEL"
+            index = "1"
+        - PCI_STORAGE:
+            libvirt_pci_device_type = "STORAGE"
+            # Please enter the PCI device label for
+            # a storage device. We will attach this
+            # device to guest.
+            # E.g: pci_0000_0d_00_0
+            libvirt_pci_storage_dev_label = "ENTER.YOUR.PCI.LABEL"
+    variants:
+        - passthrough_eeh_guest:
+            eeh_guest = "yes"
+        - passthrough_suspend_host:
+            eeh_host = "yes"