MAINTAINERS/RISCV: Cover mb/emulation/spike-riscv

Change-Id: Id5f3f7f25041189d137ef4daa9f63a3b478763bc
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Reviewed-on: https://review.coreboot.org/16988
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
1 file changed