Set default text style in layoutlib as NORMAL [DO NOT MERGE]

If a style doesn't specify text style (normal/bold/italic/bold-italic)
then default to normal instead of throwing an error.

Bug: http://b.android.com/61358
Change-Id: I0138c73807a5ff6e4d938a99ece3044333110aa1
(cherry picked from commit 0acfb16dcd95468fe032204f54618e86becfd1eb)
1 file changed