sh: Move sh64 board defconfigs to arch/sh/configs.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

diff --git a/arch/sh64/configs/cayman_defconfig b/arch/sh/configs/cayman_defconfig
similarity index 100%
rename from arch/sh64/configs/cayman_defconfig
rename to arch/sh/configs/cayman_defconfig

diff --git a/arch/sh64/configs/harp_defconfig b/arch/sh/configs/harp_defconfig
similarity index 100%
rename from arch/sh64/configs/harp_defconfig
rename to arch/sh/configs/harp_defconfig

diff --git a/arch/sh64/configs/sim_defconfig b/arch/sh/configs/sim_defconfig
similarity index 100%
rename from arch/sh64/configs/sim_defconfig
rename to arch/sh/configs/sim_defconfig