Tweaks to x86 mterp periodic checks [issue 2634642]

Update the x86 mterp main interpetation loop to match Arm and the portable
interpreter by checking for debugger/profiler after suspends.  Also,
enable ability to skip a load when checking for active debugger (both
Arm and x86).

Related cl: https://android-git.corp.google.com/g/#change,50229

Change-Id: Ic5d0f102b2250393eaf4405e4cafb7678b1a563e
3 files changed