Updated makefile dependencies after adding SDL2 gui


git-svn-id: svn://svn.code.sf.net/p/bochs/code/trunk@12396 6c8e4198-a580-4521-a02f-c9ae86df1db9
Added SDL2 support to option --with-all-libs. If SDL2 can be compiled, enable
it - otherwise try to detect legacy SDL.


git-svn-id: svn://svn.code.sf.net/p/bochs/code/trunk@12397 6c8e4198-a580-4521-a02f-c9ae86df1db9
Regenerated after SDL2 changes


git-svn-id: svn://svn.code.sf.net/p/bochs/code/trunk@12398 6c8e4198-a580-4521-a02f-c9ae86df1db9