Repository: netbox-community/netbox
Issue: Importation of cable with termination to virtual interface an exception is generated

### NetBox version

v3.3.1

### Python version

3.10

### Steps to Reproduce

1. Create Site, Device Type, Device Role to support device creation
2. Create device using previous type, role and site
3. Create 2 virtual interfaces on device
4. Import cable between two interfaces

### Expected Behavior

Import error shown

### Observed Behavior

Exception raised:

```ValueError at /dcim/cables/import/
'CableCSVForm' has no field named 'termination'.
Request Method:	POST
Request URL:	http://127.0.0.1:8000/dcim/cables/import/
Django Version:	4.0.7
Exception Type:	ValueError
Exception Value:	
'CableCSVForm' has no field named 'termination'.
Exception Location:	C:\\Development\\netbox\\venv\\lib\\site-packages\\django\\forms\\forms.py, line 400, in add_error
Python Executable:	C:\\Development\\netbox\\venv\\Scripts\\python.exe
Python Version:	3.10.4
Python Path:	
['C:\\\\Development\\\\netbox\\\\netbox\\\\netbox',
 'C:\\\\Program Files\\\\Python\\\\3.10\\\\python310.zip',
 'C:\\\\Program Files\\\\Python\\\\3.10\\\\DLLs',
 'C:\\\\Program Files\\\\Python\\\\3.10\\\\lib',
 'C:\\\\Program Files\\\\Python\\\\3.10',
 'C:\\\\Development\\\\netbox\\\\venv',
 'C:\\\\Development\\\\netbox\\\\venv\\\\lib\\\\site-packages',
 'c:\\\\development\\\\netbox\\\\netbox-routing',
 'c:\\\\development\\\\netbox\\\\netbox-config-backup',
 'C:\\\\Development\\\\netbox\\\\venv\\\\lib\\\\site-packages\\\\pydriller-2.1-py3.10.egg',
 'C:\\\\Development\\\\netbox\\\\venv\\\\lib\\\\site-packages\\\\dulwich-0.20.35-py3.10-win-amd64.egg',
 'C:\\\\Development\\\\netbox\\\\venv\\\\lib\\\\site-packages\\\\uuid-1.30-py3.10.egg',
 'C:\\\\Development\\\\netbox\\\\venv\\\\lib\\\\site-packages\\\\lizard-1.17.9-py3.10.egg',
 'C:\\\\Development\\\\netbox\\\\venv\\\\lib\\\\site-packages\\\\types_pytz-2021.3.6-py3.10.egg',
 'C:\\\\Development\\\\netbox\\\\venv\\\\lib\\\\site-packages\\\\gitpython-3.1.27-py3.10.egg',
 'C:\\\\Development\\\\netbox\\\\venv\\\\lib\\\\site-packages\\\\gitdb-4.0.9-py3.10.egg',
 'C:\\\\Development\\\\netbox\\\\venv\\\\lib\\\\site-packages\\\\smmap-5.0.0-py3.10.egg',
 'c:\\\\development\\\\netbox\\\\netbox-sync',
 'c:\\\\development\\\\netbox\\\\netbox-secretstore']
Server time:	Fri, 02 Sep 2022 17:30:30 +0000```

Changed files:
netbox/dcim/models/cables.py

diff --git a/netbox/dcim/models/cables.py b/netbox/dcim/models/cables.py
index ab1fe88e4..e05eb6d51 100644
--- a/netbox/dcim/models/cables.py
+++ b/netbox/dcim/models/cables.py
@@ -281,15 +281,11 @@ class CableTermination(models.Model):
 
         # Validate interface type (if applicable)
         if self.termination_type.model == 'interface' and self.termination.type in NONCONNECTABLE_IFACE_TYPES:
-            raise ValidationError({
-                'termination': f'Cables cannot be terminated to {self.termination.get_type_display()} interfaces'
-            })
+            raise ValidationError(f"Cables cannot be terminated to {self.termination.get_type_display()} interfaces")
 
         # A CircuitTermination attached to a ProviderNetwork cannot have a Cable
         if self.termination_type.model == 'circuittermination' and self.termination.provider_network is not None:
-            raise ValidationError({
-                'termination': "Circuit terminations attached to a provider network may not be cabled."
-            })
+            raise ValidationError("Circuit terminations attached to a provider network may not be cabled.")
 
     def save(self, *args, **kwargs):