Fix wrong machine identifier for AArch64 in linkloader.

This doesn't change functionality at all, since the only "machine" variant
with special handling is EM_MIPS. Thus, reconfiguring as EM_AARCH64 instead
of EM_ARM is safe (and correct).

Change-Id: I6249682155957d20253ae48d2564e5b31cf21351
1 file changed