Reduce noise from comparison
This change bundles some cleanup done while doing FP16 IGEMM work. The main change is the reduced output from the comparison function, which instead of printing each differing value on a new line instead bundles them on a per matrix row, with some block description. Also, the output is only printed if there is a mismatch
Signed-off-by: Emil Ohlsson emil.ohlsson@arm.com