[tools][mkimage] Update mkimage deps to reflect external refactoring.
[tools][mkimage] Update mkimage deps to reflect external refactoring.

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