SystemUI: Make wifi combo margin themable

Change-Id: Ie77b13cee84d5b472f878dba6388f3e168f5a249
Themes: Add read/write permissions [1/2]

Change-Id: Id9710a7f6058454f563488288220744b02cc4850

Conflicts:
	core/res/AndroidManifest.xml
Revert "wm: Make the default menu longpress action configurable at build time"

This reverts commit 404d228329670df624e28410345f07e4c984db3b.