ExifInterface: Remove casting int[] to long[]

This CL removes code that directly casts int[] to long[] and instead
iterates through the individual values and casts to int if necessary.
They are cast to integer because StripOffsets/StripByteCounts
Attributes can return either int[] or long[] values, but the maximum
length of a file that ExifInterface can handle is the maximum value
of integer, so it should be safe to cast the long values to integer
values.

Bug: 73091048
Test: Cts
Change-Id: I9f3b98204e0829a8a8a30927bb8c0a698c457654