Fix checkstyle if-statements must use braces in yang-data-operations

Change-Id: Ia51055f22e2e3bc7693f35337c6d86e3d6663531
Signed-off-by: Thanh Ha <thanh.ha@linuxfoundation.org>
Fix checkstyle if-statements must use braces in yang-parser-impl

Change-Id: If6e41ded71028c7f506e87b310f1ea5b8cdc22af
Signed-off-by: Thanh Ha <thanh.ha@linuxfoundation.org>
Fix checkstyle if-statements must use braces in yang-model-util

Change-Id: I5535870da8d317999b10b4e07e79d849ccc531a4
Signed-off-by: Thanh Ha <thanh.ha@linuxfoundation.org>
Merge "Fix checkstyle if-statements must use braces in yang-data-operations"
Merge "Fix checkstyle if-statements must use braces in yang-parser-impl"
Merge "Fix checkstyle if-statements must use braces in yang-model-util"