Use minimum resolution of supported resolutions

parameters.getSupportedVideoSizes() is not sorted. It causes some
devices use maximum resolution to test video recording. And the encoded
result of the resolution may exceed the file size limitation very easily.

Bug: 38250255
Test: Pass testRecorderVideo
Change-Id: I6f2bac6000cb77afcd3017c73b4a3a8dd16a595f
1 file changed