[PATCH] kconfig: linux.pot for all arch

The 'make update-po-config' creates the .pot file for the default arch.  This
patch enhances it with all arch.

Signed-off-by: Egry Gabor <gaboregry@t-online.hu>
Cc: Arnaldo Carvalho de Melo <acme@conectiva.com.br>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>