mpeg4dec: Add support for Simple Profile Level 6

Also changed the if else block to a switch case for readability

Bug: 224458012
Test: Test playback of Simple Profile Level 6 clip

Change-Id: I14f877de268cb9d1cda5e7e8884871b629d905df
(cherry picked from commit ae437a9e3627f7859604f153da692d20d737c441)
Merged-In: I14f877de268cb9d1cda5e7e8884871b629d905df
1 file changed