Merge branch 'security-aosp-qt-release' into int/10/fp2

* security-aosp-qt-release:
  Zero initialize ExifMnoteData<vendor> during construction with exif_mnote_data_<vendor>_new.
  Ensure MakeNote data pointers are initialized with NULL.
  Fix MakerNote tag size overflow issues at read time.

Change-Id: Ic91799dd110df43d3d01949bc0fddfdb12aaeb52