x86_64: Fix issues in entrypoints

Minor fixes, also avoiding duplicate restore
in art_quick_resolution_trampoline (084-class-init issue)

Change-Id: I9991accb286c3ea231054d5eeb6eefc229df80f6
Signed-off-by: Dmitry Petrochenko <dmitry.petrochenko@intel.com>
1 file changed