[coreboot] coreboot Meetings Announcement And Agenda Call

Dear community,

Kindly note that the upcoming coreboot leadership meeting is scheduled for Wednesday, March 20,
2024.[1]
Please take a moment to update the current agenda items with matters you wish to see addressed
during the meeting. [2]

[1](https://www.coreboot.org/calendar.html).
[2](https://docs.google.com/document/d/1NRXqXcLBp5pFkHiJbrLdv3Spqh1Hu086HYkKrgKj...).