in_sdl.c: Fix numpad translation with SDL 1.2.


git-svn-id: svn://svn.code.sf.net/p/quakespasm/code/trunk@1090 af15c1b1-3010-417e-b628-4374ebc0bcbd
in_sdl.c: Workaround for broken SDL2 numlock state.


git-svn-id: svn://svn.code.sf.net/p/quakespasm/code/trunk@1091 af15c1b1-3010-417e-b628-4374ebc0bcbd