yugabyte: tests should use image built by rook
yugabyte: tests should use image built by rook

The integration tests for yugabyte were pointing to an image
outside of the rook repo. Since that image changed unexpectedly
it broke the rook integration tests. The tests need to use
the image built by rook.

Signed-off-by: Travis Nielsen <a8b474fdb3f77f44446f0ab9ddca8147b09b3a9e@redhat.com>

rook/rook,rook/rook,rook/nfs,rook/nfs,rook/rook,rook/rook,rook/nfs,rook/rook