Update API documentation for resizing (#6556)

The correct parameter is `cpuspeed` and not `cpu`. This led me to some
confusion when resizing a VM attached to an offering allowing custom
values.

Co-authored-by: Ruben Bosch <ruben.bosch@cldin.eu>

Author: Rubueno

api/src/main/java/org/apache/cloudstack/api/command/admin/systemvm/ScaleSystemVMCmd.java

@@ -60,7 +60,7 @@ public class ScaleSystemVMCmd extends BaseAsyncCmd {
     @Parameter(name = ApiConstants.SERVICE_OFFERING_ID, type = CommandType.UUID, entityType = ServiceOfferingResponse.class, required = true, description = "the service offering ID to apply to the system vm")
     private Long serviceOfferingId;
 
-    @Parameter(name = ApiConstants.DETAILS, type = CommandType.MAP, description = "name value pairs of custom parameters for cpu, memory and cpunumber. example details[i].name=value")
+    @Parameter(name = ApiConstants.DETAILS, type = CommandType.MAP, description = "name value pairs of custom parameters for cpuspeed, memory and cpunumber. example details[i].name=value")
     private Map<String, String> details;
 
     /////////////////////////////////////////////////////

api/src/main/java/org/apache/cloudstack/api/command/admin/systemvm/UpgradeSystemVMCmd.java

@@ -55,7 +55,7 @@ public class UpgradeSystemVMCmd extends BaseCmd {
     @Parameter(name = ApiConstants.SERVICE_OFFERING_ID, type = CommandType.UUID, entityType = ServiceOfferingResponse.class, required = true, description = "the service offering ID to apply to the system vm")
     private Long serviceOfferingId;
 
-    @Parameter(name = ApiConstants.DETAILS, type = CommandType.MAP, description = "name value pairs of custom parameters for cpu, memory and cpunumber. example details[i].name=value")
+    @Parameter(name = ApiConstants.DETAILS, type = CommandType.MAP, description = "name value pairs of custom parameters for cpuspeed, memory and cpunumber. example details[i].name=value")
     private Map<String, String> details;
 
     /////////////////////////////////////////////////////

api/src/main/java/org/apache/cloudstack/api/command/user/vm/ScaleVMCmd.java

@@ -67,7 +67,7 @@ public class ScaleVMCmd extends BaseAsyncCmd implements UserCmd {
             required=true, description="the ID of the service offering for the virtual machine")
     private Long serviceOfferingId;
 
-    @Parameter(name = ApiConstants.DETAILS, type = BaseCmd.CommandType.MAP, description = "name value pairs of custom parameters for cpu,memory and cpunumber. example details[i].name=value")
+    @Parameter(name = ApiConstants.DETAILS, type = BaseCmd.CommandType.MAP, description = "name value pairs of custom parameters for cpuspeed, memory and cpunumber. example details[i].name=value")
     private Map<String, String> details;
 
     @Parameter(name = ApiConstants.MIN_IOPS, type = CommandType.LONG, required = false, description = "New minimum number of IOPS for the custom disk offering", since = "4.17")

api/src/main/java/org/apache/cloudstack/api/command/user/vm/UpgradeVMCmd.java

@@ -66,7 +66,7 @@ public class UpgradeVMCmd extends BaseCmd implements UserCmd {
             required=true, description="the service offering ID to apply to the virtual machine")
     protected Long serviceOfferingId;
 
-    @Parameter(name = ApiConstants.DETAILS, type = CommandType.MAP, description = "name value pairs of custom parameters for cpu, memory and cpunumber. example details[i].name=value")
+    @Parameter(name = ApiConstants.DETAILS, type = CommandType.MAP, description = "name value pairs of custom parameters for cpuspeed, memory and cpunumber. example details[i].name=value")
     private Map<String, String> details;
 
     @Parameter(name = ApiConstants.MIN_IOPS, type = CommandType.LONG, required = false, description = "New minimum number of IOPS for the custom disk offering", since = "4.17")