[19.03 backport] Fix panic in drivers/overlay/encryption.go #2483
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backport of #2462
Issue - "index out of range" panic in drivers/overlay/encryption.go:539
due to a mismatch in indices between curKeys and spis due to
case where updateKeys might bail out due to an error and
not update the spis
Fix - Reconfigure keys when there is a key update failure
Signed-off-by: Arko Dasgupta [email protected]
(cherry picked from commit 4420ee9)
Signed-off-by: Sebastiaan van Stijn [email protected]