Secure channel - Script has to be updated as per Test plan

[raju-apple]

From chip-test-scripts created by Rajashreekalmane: CHIP-Specifications/chip-test-scripts#648

Description:
Secure channel - Script missed to add the PICS_MCORE_ICD for below mentioned test cases.

• TC-SC-4.1
• TC-SC-4.3

Test-Plan Reference :
https://github.com/CHIP-Specifications/chip-test-plans/blob/master/src/securechannel.adoc#tc-sc-4-1-commissionable-node-discovery-dut_commissionee

[raju-apple]

@Rajashreekalmane We will fix the script once the test-plan issue 3439 got fixed

[raju-apple]

Waiting for https://github.com/CHIP-Specifications/chip-test-plans/issues/3440 to land . @akrithika27 FYI