[MINOR] Add compressed statistics if decompressing

Because we now support reading compressed data, then
we can use compressed matrices even if we do not enable CLA.
Therefore to see the statistics of compression in such cases
we print compression statistics if we ever decompress.

Signed-off-by: Sebastian Baunsgaard <[email protected]>

Author: Baunsgaard

src/main/java/org/apache/sysds/utils/Statistics.java

@@ -1102,7 +1102,7 @@ public static String display(int maxHeavyHitters)
 
 			sb.append(TransformStatistics.displayStatistics());
 
-			if(ConfigurationManager.isCompressionEnabled()){
+			if(ConfigurationManager.isCompressionEnabled() || DMLCompressionStatistics.getDecompressionCount() > 0){
 				DMLCompressionStatistics.display(sb);
 			}