Fix media quality implementation

In convert bundle to parameter array util function, the toArray()
method's return type is the most general type: Object. it's attempting a
direct cast, which will result in a ClassCastException at runtime.

Bug: 394345093
Test: atest and check log message
Flag: EXEMPT bugfix
Change-Id: I6c8f86bf82f7b6cc284aae650b3c2672bea5a854