greybus: scripts: create subdir for checkpatch and spelling.txt

They belong in a subdir.

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

diff --git a/drivers/staging/greybus/checkpatch.pl b/drivers/staging/greybus/scripts/checkpatch.pl
similarity index 100%
rename from drivers/staging/greybus/checkpatch.pl
rename to drivers/staging/greybus/scripts/checkpatch.pl

diff --git a/drivers/staging/greybus/spelling.txt b/drivers/staging/greybus/scripts/spelling.txt
similarity index 100%
rename from drivers/staging/greybus/spelling.txt
rename to drivers/staging/greybus/scripts/spelling.txt