Fix x86 art_quick_set64_instance quick entrypoint

art_quick_set64_instance accept ebx as a 4-th parameter.
At the same time it is used as a temporary for SETUP_REFS_ONLY_CALLEE_SAVE_FRAME.
We should preserve it and restore to pass the right value to artSet64InstanceFromCode.

Change-Id: Iac0a32583be1015e502ae0f8ff57c4b9c0301730
Signed-off-by: Serguei Katkov <serguei.i.katkov@intel.com>