Update to DNG SDK 1.7.1 2502 Test: make Flag: EXEMPT BUGFIX Cherrypick-From: https://googleplex-android-review.googlesource.com/q/commit:51fac39e7e2a05b2c5fa54108035d0140a5bc86c Bug: 491543354 Cherrypick-From: https://googleplex-android-review.googlesource.com/q/commit:3a02f977b587dd1f00aee6a38f557ac86bb7d846 Merged-In: I98050384600e0f4ac77f4378e00eee9be4830aa7 Change-Id: I98050384600e0f4ac77f4378e00eee9be4830aa7