Add Settings.Secure.NAVIGATION_MODE_RESTORE

During restore get NAVIGATION_MODE value and write it to NAVIGATION_MODE_RESTORE.
This value is used for improving setup experience.
Bug: 244532342
Test: manual
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:918a57109c926328a717e90418ae5ac5dbb5f683)
Merged-In: I12b182184e1d381e14c7b290fd5f357026990c78
Change-Id: I12b182184e1d381e14c7b290fd5f357026990c78