bitbake: knotty: kill duplicated import of 'time'

The duplicated import could result in an UnboundLocalError.

(Bitbake rev: a098cebd5c33ebd704efd35d9e655262283cbe1f)

Signed-off-by: Christopher Larson <chris_larson@mentor.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit c176e5a3fe75cb0e896b5a665c6a7a41c7377f15)

Signed-off-by: Christopher Larson <chris_larson@mentor.com>
sstate: when warnings about sysroot overwrites, say what the recipe was

(From OE-Core rev: 936e2868bb9973213630477ab9c880dbdf4aac09)

Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit 3bf1848cb747027bd0d281620a008f4d5ce8b6f1)

Signed-off-by: Christopher Larson <chris_larson@mentor.com>