arm: mach-imx: move snvs module

Commit 723f8359c1 ("imx: mx7: snvs: Add an SNVS init routine") noted
that the init_snvs() call likely applies to other i.MX processors, and
this has been found to be true for i.MX8MP.

Move snvs module for future re-use.

Signed-off-by: Ian Ray <ian.ray@gehealthcare.com>
4 files changed