base

Fix bug 5614962 - Constant spinning wheel in USB Mass Storage screen (UX)

Disable the window-level progress spinner; another is already shown while
connecting.

Use the correct Settings icon for SystemUI.

Specify the activity title for the USB mass storage screen in the
manifest to avoid title flashing during startup.

Change-Id: Ic57af56bf1661a5eaa91fff77471dc8447340d16