[arch][arm64] Reduce stack size
[arch][arm64] Reduce stack size

Change-Id: I3a4457d62d545aafb58dd6adf95982e010a997b4

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