Add a script cavan-sprd-compile

Signed-off-by: Fuang.Cao <cavan.cfa@gmail.com>
Add a doc for java note

Signed-off-by: Fuang.Cao <cavan.cfa@gmail.com>
Add library alarm and app alarm

Signed-off-by: Fuang.Cao <cavan.cfa@gmail.com>