DO NOT MERGE: Fix mobile in/out activity indicator icons are not shown correctly

Mobile in/out indicator icons on status bar are not shown correctly.
- When only in indicator is requested, both in/out indicators are shown
- When only out indicator is requested, neither of in/out indicators are
shown

This CL fixes both of in/out indicators are shown properly.

Fixes: 112321399
Test: com.android.systemui.demo command
Change-Id: I803f21aecc444243c12ed75e2f148963742bce4a