first_stage_init: Add SIGCHLD handler in first_stage_console

Add a simple SIGCHLD handler to reap zombie processes given to init.

Bug: 197662257
Change-Id: I6e7930cfd7c311c454b361b9a541369ece2eb744
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
1 file changed