Clear span array and set only 1 span when phone number changed

Doc https://goto.google.com/b25324025

Bug 25324025

Change-Id: I40f228efd704e956976d74b2fd8123bf8cc3f770
(cherry picked from commit 0761a0cdbef8447ef108111243279c6b5a91c2e3)
1 file changed