Add recovery permission to Settings app

Settings app needs to retrieve and publish update info from
SystemUpdateManager. This is needed to install 16k developer option
update which enables users to use 16K kernel from local OTAs.

Test: m Settings && adb install -r $ANDROID_PRODUCT_OUT/system_ext/priv-app/Settings/Settings.apk
Bug: 302391134
Bug: 295035851
Change-Id: I89e30a8fc7e753f41c70e3ddbf759fb63ea97bd5