MLBEDSW-10231 Fix find block config for AvgPool
- Find block config for an AvgPool failed and triggered an assert
- Adding a final step which halves the depth until minimum granule depth is reached solves the problem
Change-Id: I81689fb26e20744b5f5b23226570ef8df499b8ea Signed-off-by: Johan Alfvén johan.alfven@arm.com