DRA: fix allocation mode All

`All` allocation mode should mean 'at least one' for DRA.
Allocation should fail if `All` devices requested and none found.

Author: bart0sh

api/openapi-spec/swagger.json

@@ -430,10 +430,11 @@ type DeviceRequest struct {
 	//   count field.
 	//
 	// - All: This request is for all of the matching devices in a pool.
+	//   At least one device must exist on the node for the allocation to succeed.
 	//   Allocation will fail if some devices are already allocated,
 	//   unless adminAccess is requested.
 	//
-	// If AlloctionMode is not specified, the default mode is ExactCount. If
+	// If AllocationMode is not specified, the default mode is ExactCount. If
 	// the mode is ExactCount and count is not specified, the default count is
 	// one. Any other requests must specify this field.
 	//

api/openapi-spec/v3/apis__resource.k8s.io__v1alpha3_openapi.json

@@ -428,10 +428,11 @@ type DeviceRequest struct {
 	//   count field.
 	//
 	// - All: This request is for all of the matching devices in a pool.
+	//   At least one device must exist on the node for the allocation to succeed.
 	//   Allocation will fail if some devices are already allocated,
 	//   unless adminAccess is requested.
 	//
-	// If AlloctionMode is not specified, the default mode is ExactCount. If
+	// If AllocationMode is not specified, the default mode is ExactCount. If
 	// the mode is ExactCount and count is not specified, the default count is
 	// one. Any other requests must specify this field.
 	//

api/openapi-spec/v3/apis__resource.k8s.io__v1beta1_openapi.json

@@ -436,10 +436,11 @@ type DeviceRequest struct {
 	//   count field.
 	//
 	// - All: This request is for all of the matching devices in a pool.
+	//   At least one device must exist on the node for the allocation to succeed.
 	//   Allocation will fail if some devices are already allocated,
 	//   unless adminAccess is requested.
 	//
-	// If AlloctionMode is not specified, the default mode is ExactCount. If
+	// If AllocationMode is not specified, the default mode is ExactCount. If
 	// the mode is ExactCount and count is not specified, the default count is
 	// one. Any other requests must specify this field.
 	//