[kernel][vm] Add lock around public VMM operations
[kernel][vm] Add lock around public VMM operations

Change-Id: I873f1dc0ecf49afc790c5012b53a3679048c2a80

travisg/lk,sndnvaps/lk,hollanderic/lkstuff,srodrig1/lk,grub4android/lk,sndnvaps/lk,GCrean/lk,grub4android/lk,ErikCorryGoogle/lk,nvll/lk,minglun-tsai/lk,GCrean/lk,GCrean/lk,skabet/lk,minglun-tsai/lk,GCrean/lk,ErikCorryGoogle/lk,travisg/lk,sndnvaps/lk,srodrig1/lk,GCrean/lk,littlekernel/lk,grub4android/lk,skabet/lk,nvll/lk,travisg/lk,minglun-tsai/lk,skabet/lk,littlekernel/lk,travisg/lk,hollanderic/lkstuff,grub4android/lk,grub4android/lk,nvll/lk,ErikCorryGoogle/lk,hollanderic/lkstuff,skabet/lk,srodrig1/lk,srodrig1/lk,minglun-tsai/lk,skabet/lk,sndnvaps/lk,hollanderic/lkstuff,littlekernel/lk,nvll/lk,ErikCorryGoogle/lk,nvll/lk,littlekernel/lk,srodrig1/lk,sndnvaps/lk