libc: Fix memchr inclusion

Change-Id: I6f374f16b08e19851a375a4abad3e8235f8da59c
libc: Fix memchr inclusion on scorpion

Change-Id: I0f4d31c85c8671be9790feab03469f89520763b7
Merge remote-tracking branch 'cyanogen/cm-11.0' into cm-11.0