media: allow full range of Vorbis sampling rates

Bug: 18615604
Change-Id: I51f0c5c81145b94626f2b7e4505b905b63a572bf
media: fix isSupportedFormat for integer frame rate

Bug: 18473065
Change-Id: I670cc043d3cb117c26921cb639ff9eecc8f14b0a
Merge "media: allow full range of Vorbis sampling rates"
Merge "media: fix isSupportedFormat for integer frame rate"