Allow fields in biometric prompt to span multiple lines.

This partially reverts commit 0c7065912dc0b4fe8b9d6885b623f7fa6d4d8162
that changed title, subtitle, & description to singleLine.

Fix: 205483614
Test: Manual (verify text wraps using test app)
Change-Id: I15c521a83df4a9ff901a4f1977d700192b12687e