Skip DUTs that don't support apply-patch feature

[wen587]

Description of PR

Summary: Skip duts that dont have config apply-patch support
Fixes # (issue) Nightly test in old dut version

Type of change

• Bug fix
• Testbed and Framework(new/improvement)
• Test case(new/improvement)

Back port request

• 201911

Approach

What is the motivation for this PR?

Fix Nightly test issue

How did you do it?

Skip DUTs that don't have apply-patch support

How did you verify/test it?

Test on 202012 DUT, tests are all skipped
generic_config_updater/test_dhcp_relay.py::test_dhcp_relay_tc1_apply_empty[clean_setup] SKIPPED [ 6%]
generic_config_updater/test_dhcp_relay.py::test_dhcp_relay_tc2_rm_on_empty[clean_setup] SKIPPED [ 12%]
generic_config_updater/test_dhcp_relay.py::test_dhcp_relay_tc3_rm_nonexist[clean_setup] SKIPPED [ 18%]
generic_config_updater/test_dhcp_relay.py::test_dhcp_relay_tc4_add_exist[clean_setup] SKIPPED [ 25%]
generic_config_updater/test_dhcp_relay.py::test_dhcp_relay_tc5_rm[clean_setup] SKIPPED [ 31%]
generic_config_updater/test_dhcp_relay.py::test_dhcp_relay_tc6_add[clean_setup] SKIPPED [ 37%]
generic_config_updater/test_dhcp_relay.py::test_dhcp_relay_tc7_add_rm[clean_setup] SKIPPED [ 43%]
generic_config_updater/test_dhcp_relay.py::test_dhcp_relay_tc7_replace[clean_setup] SKIPPED [ 50%]
generic_config_updater/test_dhcp_relay.py::test_dhcp_relay_tc1_apply_empty[default_setup] SKIPPED [ 56%]
generic_config_updater/test_dhcp_relay.py::test_dhcp_relay_tc2_rm_on_empty[default_setup] SKIPPED [ 62%]
generic_config_updater/test_dhcp_relay.py::test_dhcp_relay_tc3_rm_nonexist[default_setup] SKIPPED [ 68%]
generic_config_updater/test_dhcp_relay.py::test_dhcp_relay_tc4_add_exist[default_setup] SKIPPED [ 75%]
generic_config_updater/test_dhcp_relay.py::test_dhcp_relay_tc5_rm[default_setup] SKIPPED [ 81%]
generic_config_updater/test_dhcp_relay.py::test_dhcp_relay_tc6_add[default_setup] SKIPPED [ 87%]
generic_config_updater/test_dhcp_relay.py::test_dhcp_relay_tc7_add_rm[default_setup] SKIPPED [ 93%]
generic_config_updater/test_dhcp_relay.py::test_dhcp_relay_tc7_replace[default_setup] SKIPPED [100%]

Any platform specific information?

admin@str2-msn4600c-acs-04:~$ show version

SONiC Software Version: SONiC.20201231.42
Distribution: Debian 10.11
Kernel: 4.19.0-12-2-amd64
Build commit: e13c354904
Build date: Mon Nov 15 14:28:35 UTC 2021
Built by: cloudtest@fd147d04c000001

Platform: x86_64-mlnx_msn4600c-r0
HwSKU: ACS-MSN4600C
ASIC: mellanox
ASIC Count: 1
Serial Number: MT2115X26247
Uptime: 08:10:54 up 20:36, 1 user, load average: 0.26, 0.34, 0.61

Supported testbed topology if it's a new test case?

Documentation

[bingwang-ms]

Please update how did you verify the change. Thanks