There's no need to include anything other than "greybus.h" in
"connection.c". Same thing in "core.c" and "manifest.c" and
"svc.c". Some files need headers included, but most come along
with "greybus.h".
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>