Improved conversion accuracy of exif geotag data
Improved conversion accuracy of exif geotag data

Changed degrees and minutes of geotag data into double to avoid
data loss during cast.

Also improved error handling if geotag data can't be parsed.

bug:3381761
Change-Id: I864843c7fc699fe81e6acba801fe46d10a01925b

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