ipc/msgsnd0*: cleanup && convert to new API

1) The msgsnd03 was merged into msgsnd02
2) The msgsnd04 was merged into msgsnd05
3) take use of IPC related macros

Signed-off-by: Xiao Yang <yangx.jy@cn.fujitsu.com>
Signed-off-by: Cyril Hrubis <chrubis@suse.cz>
12 files changed