Status bar iconography updates

- Use new assets for location, flightmode and "more" notifications
  icon.
- Update icon size and clock to spec.
- Change from fixed width of the icons to WRAP_CONTENT, so they look
  more evenly distributed.
- Adjust subpixel rendering of battery icon to match other vector
  icons.

Bug: 16161255
Change-Id: I0a80f223b7d532bc53a201cff37b8f1cb09f08c2