stdlib: Changed use of Workload to obtain_resource

- Changed files calling Workload class to call obtain_resoucre instead.

Change-Id: I41f5f0c3ccc7c08b39e7049eabef9609d6d68788

tests/gem5/riscv_boot_tests/configs/riscv_boot_exit_run.py

@@ -40,7 +40,7 @@ from gem5.components.processors.cpu_types import CPUTypes
 from gem5.components.boards.riscv_board import RiscvBoard
 from gem5.components.processors.simple_processor import SimpleProcessor
 from gem5.simulate.simulator import Simulator
-from gem5.resources.workload import Workload
+from gem5.resources.resource import obtain_resource
 
 import argparse
 import importlib
@@ -160,7 +160,7 @@ board = RiscvBoard(
 )
 
 # Set the workload.
-workload = Workload(
+workload = obtain_resource(
     "riscv-ubuntu-20.04-boot", resource_directory=args.resource_directory
 )
 board.set_workload(workload)

tests/gem5/x86_boot_tests/configs/x86_boot_exit_run.py

@@ -41,7 +41,7 @@ from gem5.components.processors.cpu_types import (
 )
 from gem5.components.processors.simple_processor import SimpleProcessor
 from gem5.simulate.simulator import Simulator
-from gem5.resources.workload import Workload
+from gem5.resources.resource import obtain_resource
 
 import argparse
 import importlib
@@ -184,7 +184,7 @@ if args.boot_type == "init":
     kernal_args.append("init=/root/exit.sh")
 
 # Set the workload.
-workload = Workload(
+workload = obtain_resource(
     "x86-ubuntu-18.04-boot", resource_directory=args.resource_directory
 )
 workload.set_parameter("kernel_args", kernal_args)