Fix a spelling error in Supporting Languages page.

Bug:
https://code.google.com/p/android/issues/detail?id=71378

Change-Id: I82bc1b3e9b20fdafc74ef544e5bde4f22c47f2e3
(cherry picked from commit 52eae0ac1e78fc22cae962a99d19ed6f33d2a2da)
1 file changed