cris: drivers/cdrom/Kconfig no longer exists

scripts/kconfig/conf -d arch/cris/Kconfig
arch/cris/Kconfig:183: can't open file "drivers/cdrom/Kconfig"

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Cc: Mikael Starvik <starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>