delta-q: set tx_type as DCT_DCT when eob is 0
delta-q: set tx_type as DCT_DCT when eob is 0

BUG=aomedia:1592

Change-Id: Ic1a18f91151875de0241b0b1320a82dffecc7afa

GrokImageCompression/aom,GrokImageCompression/aom,GrokImageCompression/aom,GrokImageCompression/aom,GrokImageCompression/aom,GrokImageCompression/aom