[PATCH] kconfig: update kconfig Makefile

Remove the long obsolete zconf.tab.h and fix kconfig make rules to generate
the correct output files.  Setting LKC_GENPARSER will now also update the
shipped files.

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>