Change word powershell to PowerShell

[123lzxm]

Change word "powershell" to "PowerShell" in the task name, debug message and description part etc.

[Tomorrow9]

LGTM, thanks!

[123lzxm]

Test Results (Total: 28, Passed: 27, Failed: 1, Elapsed Time: 03:32:19)
+--------------------------------------------------------------+
| ID | Name                             |   Status | Exec Time |
+--------------------------------------------------------------+
| 01 | deploy_vm_efi_nvme_e1000e        |   Passed | 00:53:16  |
| 02 | check_inbox_driver               |   Passed | 00:05:56  |
| 03 | secureboot_enable_disable        |   Passed | 00:09:53  |
| 04 | wintools_complete_install_verify |   Passed | 00:11:25  |
| 05 | check_efi_firmware               |   Passed | 00:00:42  |
| 06 | check_ip_address                 |   Passed | 00:00:42  |
| 07 | check_os_fullname                |   Passed | 00:00:33  |
| 08 | mouse_driver_vmtools             |   Passed | 00:00:29  |
| 09 | vgauth_check_service             |   Passed | 00:00:25  |
| 10 | stat_balloon                     |   Passed | 00:00:30  |
| 11 | stat_hosttime                    |   Passed | 00:00:38  |
| 12 | paravirtual_vhba_device_ops      |   Passed | 00:06:53  |
| 13 | lsilogicsas_vhba_device_ops      |   Passed | 00:07:06  |
| 14 | sata_vhba_device_ops             |   Passed | 00:07:06  |
| 15 | nvme_vhba_device_ops             |   Passed | 00:07:12  |
| 16 | nvme_vhba_device_ops_spec13      |   Passed | 00:10:25  |
| 17 | nvme_disk_hot_extend_spec13      |   Passed | 00:06:19  |
| 18 | nvdimm_cold_add_remove           | * Failed | 00:04:55  |
| 19 | e1000e_network_device_ops        |   Passed | 00:04:55  |
| 20 | vmxnet3_network_device_ops       |   Passed | 00:03:47  |
| 21 | memory_hot_add_basic             |   Passed | 00:06:08  |
| 22 | check_quiesce_snapshot           |   Passed | 00:02:17  |
| 23 | cpu_multicores_per_socket        |   Passed | 00:15:45  |
| 24 | gosc_sanity_staticip             |   Passed | 00:08:41  |
| 25 | gosc_sanity_dhcp                 |   Passed | 00:13:19  |
| 26 | vtpm_cold_add_remove             |   Passed | 00:09:20  |
| 27 | wintools_uninstall_verify        |   Passed | 00:07:58  |
| 28 | cpu_hot_add_basic                |   Passed | 00:04:27  |
+--------------------------------------------------------------+