[coreboot] How to build HOB

[Hamit Can Karaca]

Hello I am new with coreboot and I am trying to understand base
functionalities. Before coreboot I was using SBL and in SBL we could pass
data to payload by building HOBs. I searched the coreboot code to see if
there is a BuildHOB function but I couldn't find it. Is there a BuildHOB
function in coreboot or does it have a different function which could pass
data to payload. (I am using EDK2 as payload)
Thanks for the answers.