Squashed 'external/devlib/' changes from f2b5f85..0498017

0498017 utils/apkinfo: Fix handing when no methods defined
b295068 devlib/target: Enable screen stay-on mode:

git-subtree-dir: external/devlib
git-subtree-split: 0498017bf0c1700aab2a8622f8c87eb76d6bd08a