Fix bug when indexing inspection mi_grid.
Fix bug when indexing inspection mi_grid.

Change-Id: I9bee09b364223e776cd14ae4a3d47e0c3ffcf008

luctrudeau/aom,GrokImageCompression/aom,luctrudeau/aom,smarter/aom,smarter/aom,luctrudeau/aom,luctrudeau/aom,GrokImageCompression/aom,luctrudeau/aom,GrokImageCompression/aom,smarter/aom,GrokImageCompression/aom,luctrudeau/aom,smarter/aom,smarter/aom,smarter/aom,GrokImageCompression/aom,GrokImageCompression/aom