[PATCH] arch/sh/Kconfig: don't source non-existing Kconfig files

arch/sh/Kconfig shouldn't source non-existing Kconfig files.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Kazumoto Kojima <kkojima@rr.iij4u.or.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>