Fix Talkback for "DEF" in dialpad.

Use Verbatim spannable for dialpad letters. This ensures they are
read as letters instead of as one word. This is primarily to address
"DEF" being read to sound like "deaf".

Bug: 23795591
Change-Id: Ic66bfe931ffec3b45332dcd3d631f86f81e20f3e
1 file changed
tree: 2a892fbec02a5439eb7fae9ef9eae9e073ede929
  1. res/
  2. src/
  3. Android.mk
  4. AndroidManifest.xml