Move 'number_of_cpus' into MiqTemplate classes

Move method calculating the number of cpus for a given request into
MiqTemplate base class, and then override it in the
ManageIQ::Providers::CloudManager::Template subclass.

app/models/manageiq/providers/cloud_manager/template.rb

@@ -155,6 +155,11 @@ def self.display_name(number = 1)
     n_('Image', 'Images', number)
   end
 
+  def number_of_cpus_for_request(request)
+    flavor_obj = Flavor.find(request.get_option(:instance_type))
+    flavor_obj.try(:cpus)
+  end
+
   private
 
   def raise_created_event

app/models/miq_template.rb

@@ -95,6 +95,11 @@ def display_deprecated
     end
   end
 
+  def number_of_cpus_for_request(request)
+    num_cpus = request.get_option(:number_of_sockets).to_i * request.get_option(:cores_per_socket).to_i
+    num_cpus.zero? ? request.get_option(:number_of_cpus).to_i : num_cpus
+  end
+
   private_class_method def self.refresh_association
     :miq_templates
   end

app/models/mixins/miq_provision_quota_mixin.rb

@@ -294,7 +294,7 @@ def vm_quota_values(pr, result)
     flavor_obj = flavor(pr)
     result[:count] += num_vms_for_request
     result[:memory] += memory(pr, cloud?(pr), vendor(pr), flavor_obj) * num_vms_for_request
-    result[:cpu] += number_of_cpus(pr, cloud?(pr), flavor_obj) * num_vms_for_request
+    result[:cpu] += pr.source.number_of_cpus_for_request(pr) * num_vms_for_request
     result[:storage] += storage(pr, cloud?(pr), vendor(pr), flavor_obj) * num_vms_for_request
     result[:ids] << pr.id
 
@@ -303,7 +303,7 @@ def vm_quota_values(pr, result)
       host_id, storage_id = p.get_option(:dest_host).to_i, p.get_option(:dest_storage).to_i
       active = result[:active]
       active[:memory_by_host_id][host_id] += memory(p, cloud?(pr), vendor(pr), flavor_obj)
-      active[:cpu_by_host_id][host_id] += number_of_cpus(p, cloud?(pr), flavor_obj)
+      active[:cpu_by_host_id][host_id] += p.source.number_of_cpus_for_request(p)
       active[:storage_by_id][storage_id] += storage(p, cloud?(pr), vendor(pr), flavor_obj)
       active[:vms_by_storage_id][storage_id] << p.id
       active[:ids] << p.id
@@ -364,15 +364,6 @@ def flavor(request)
     Flavor.find(request.get_option(:instance_type)) if cloud?(request)
   end
 
-  def number_of_cpus(prov, cloud, flavor_obj)
-    num_cpus = flavor_obj.try(:cpus) if cloud
-    return num_cpus if num_cpus.present?
-
-    request = prov.kind_of?(MiqRequest) ? prov : prov.miq_request
-    num_cpus = request.get_option(:number_of_sockets).to_i * request.get_option(:cores_per_socket).to_i
-    num_cpus.zero? ? request.get_option(:number_of_cpus).to_i : num_cpus
-  end
-
   def storage(prov, cloud, vendor, flavor_obj = nil)
     if cloud
       if vendor == 'google'