[automerger skipped] Add headers and macros for building VHAL server for AGL am: d599096596 am: 2ec2c0c65c am: 7ca0dda72b -s ours am: 8102205785 -s ours
am skip reason: Change-Id I07006a4a3e20900a2fa90b84167d114f9ac45cfe with SHA-1 d599096596 is in history

Change-Id: Ib81b7e45436e841283abc64eafeff8ff7f680e65