vmm: api: Update CpuConfig name to match the internal name

All structures match between the OpenAPI definition and the internal
configuration code, that's why CpuConfig is being renamed into
CpusConfig.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>

vmm/src/api/openapi/cloud-hypervisor.yaml

@@ -171,7 +171,7 @@ components:
       type: object
       properties:
         cpus:
-          $ref: '#/components/schemas/CpuConfig'
+          $ref: '#/components/schemas/CpusConfig'
         memory:
           $ref: '#/components/schemas/MemoryConfig'
         kernel:
@@ -221,7 +221,7 @@ components:
           default: false
       description: Virtual machine configuration
 
-    CpuConfig:
+    CpusConfig:
       required:
       - boot_vcpus
       - max_vcpus