dalvik: use bioinc memmove

use memmove from bioinc if it is halfword atomic.

Change-Id: I81c38c2b504483b69b0b1c1e4ffb63cb81d347d5
dalvik: Use Bionic's memmove on cortex-a15

Change-Id: Ia313d784cf9e261e0c82f1a6d412eca1731a5034