c2-codecs: increase the width and hight limit of vpx decoders

For HardwareDecoder running on the host, the current 2048x2048
is too small, bump to 4096x4096

Bug: 186018470

Test:

atest android.media.cts.DecoderTest#testVP9Decode60fps3840x2160

Change-Id: I61228f143a02b6f6bde886a35f8b3936fa187031
1 file changed