Binding generator v2 - Augmentation - Fix package name for recursively uses augment

Binding generator v2 - Augmentation - Fix package name for recursively uses augment

- Fix package name for recursively uses augmentation, the yang file like:
         ...
         grouping D{
                uses "grp:A" {
                    augment "A1/A1-inner" {
                        leaf D-aug-A1 {
                            type string;
                        }
                        uses B {
                            augment "B1/B1-inner" {
                                 leaf D-aug-B1-inner {
                                      type string;
                                 }
                                 uses C {
                                         augment  "C1/C1-inner" {
                                              leaf D-aug-C1-inner {
                                                   type string;
                                              }
                                         }
                                     }
                            }

                        }

                    }
                }
            }
       ...
- add UT and yang file

Change-Id: If0b1131f15ab42be5c64a0fd087bd2a14a6597ce
Signed-off-by: Jie Han <han.jie@zte.com.cn>