[devmgr] Use () instead of (void) in C++ Test: no functional change Change-Id: I415e5d250c6f07e881be69476ded7c1997861758
[core] Build devhost as C++ Test: CQ Change-Id: I071c7f80eb481d00cde3e645fc1eb472f89cc898
[core] Build devhost-main as C++ Test: CQ Change-Id: I0105f7833a29d5cb843627578b2126315e673daf