Use Html parsing on strings where rawXmlValue != value am: a1198b0c89 am: 534f85f57f am: 01ea82e2c6

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/layoutlib/+/11308350

Change-Id: Ib057c95154ce50769b24be50c7cbba0490447918