MediaFormat: Fix the documentation link to the AAC profile constants

Change-Id: If1780436baa2884cea05ccd8ab74745af790eb17
Merge "MediaFormat: Fix the documentation link to the AAC profile constants"
Remove deleted keylayout from Makefile

Change-Id: I8aecc00861cf99d8e7278519f4e2e6fb726b7e17
Merge "Remove deleted keylayout from Makefile"