ARM: S5P: Add USB External Crystal clock definition

Add USB external crystal clock definition Xusbxti to common S5P clock code.

Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2 files changed