Fix case of libc++.
Fix case of libc++.

Bug: http://b/21645707
Change-Id: I0c435c2f022413e42f71d82a419015b10ea0291c

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base