Make row indexed at 192/96 equal to the one indexed at 191/95, 
so that clamping the table address to 191/95 produces results 
consistent with the libaom implementation. 

New change to replace 10692 which was reverted in 10870.

Change-Id: I756bd9a3567aa5ac14a2d4d7d2e9bda2ebc9ac7b