Update java.lang.Short to 11+28

Added compareUnsigned() method and a unit test,
deprecated two constructors:
  * Short(short)
  * Short(String)

Bug: 160356973
Test: atest core-tests:libcore.java.lang.ShortTest#testCompareUnsigned
Change-Id: Iafdd91fa15f0c287f71fdb4a476782fef48a54ff
3 files changed