exynos: Rename -dt config files to -common

We want exynos5250-dt.h to be a board which can support any exynos5250
device. This matches the naming used by Linux. As a first step, rename
the existing -dt files to -common to make it clear they are common files,
and not specific boards.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
12 files changed