Stub INS_KeyToLocalName for SDL so we can build SDL2 again and ship a build out today.

git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@6262 fc73d0e0-1445-4013-8a0c-d673dee63da5

engine/client/in_sdl.c

@@ -933,6 +933,12 @@ static unsigned int tbl_sdltoquake[] =
 };
 #endif
 
+/* stubbed */
+qboolean INS_KeyToLocalName(int qkey, char *buf, size_t bufsize)
+{
+	return false;
+}
+
 static unsigned int tbl_sdltoquakemouse[] =
 {
 	K_MOUSE1,