Revert "Change Linkify leniency to VALID"
Revert "Change Linkify leniency to VALID"

This reverts commit 9dfe86d4102b93885b947917fccee35053cfc9f2.

That change moved the lenience from POSSIBLE to VALID, which eliminated
false positive links, especially 4 digit phone numbers, but caused
significant false negatives, leading to CTS test failures
(android.text.util.cts.LinkifyTest#testAddLinks7 in particular).

The true fix requires new functionality to validate phone numbers in
a mobile context. In the meantime, the best solution is to revert.

Bug: 18708556

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