camera2: limit flexYUV array size in DngCreator
camera2: limit flexYUV array size in DngCreator

corrected overread

Bug: 19211135
Change-Id: I373b84dd9e2dc6219a305bf2d0308119668fab2a

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base