Handle listing of PS apps in Apps > Special App Access > Device Admin Apps

Currently Device Admin Apps page shows apps from Private space even
when PS is locked.  This change takes care to hide PS apps from the list
when private profile is in quiet mode and on disabling quiet mode PS
apps are shown in the list.
Also takes care to update the active apps summary count to not include
PS apps when private profile is in quiet mode.

Recording link : b/324311892#comment2

Bug: 324311892
Test: Manual
Change-Id: If4199ecad0a228c8e491778fb62c09c8b3f20604