relocate security_solution_api.gen service

Author: dmlemeshko

x-pack/solutions/security/test/functional/services/index.ts

@@ -6,7 +6,9 @@
  */
 
 import { services as platformServices } from '@kbn/test-suites-xpack-platform/functional/services';
+import { SecuritySolutionApiProvider } from './security_solution_api.gen';
 
 export const services = {
   ...platformServices,
+  securitySolutionApi: SecuritySolutionApiProvider,
 };