[fs][shell] Allocate shell path buffers on the heap to avoid stack overruns
[fs][shell] Allocate shell path buffers on the heap to avoid stack overruns

travisg/lk,ErikCorryGoogle/lk,minglun-tsai/lk,sndnvaps/lk,travisg/lk,travisg/lk,minglun-tsai/lk,littlekernel/lk,minglun-tsai/lk,ErikCorryGoogle/lk,sndnvaps/lk,minglun-tsai/lk,hollanderic/lkstuff,sndnvaps/lk,ErikCorryGoogle/lk,littlekernel/lk,hollanderic/lkstuff,travisg/lk,hollanderic/lkstuff,littlekernel/lk,ErikCorryGoogle/lk,sndnvaps/lk,hollanderic/lkstuff,sndnvaps/lk,littlekernel/lk