Fix typo in EastAsianWidth javadoc
Fix typo in EastAsianWidth javadoc

The Javadoc had a missing close <code> tag and also failed to mention
the "start" parameter in the doc.

Change-Id: I861d6646e82e1d49f23a09de8b68a61f81689f83

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